Counter target spell. Create X 1/1 colorless Thopter artifact creature tokens with flying, where X is that spell's mana value.
{1}{G}
Aggressive Urge
Instant
Target creature gets +1/+1 until end of turn.
Draw a card.
{2}{G}
Arachnogenesis
Instant
Create X 1/2 green Spider creature tokens with reach, where X is the number of creatures attacking you. Prevent all combat damage that would be dealt this turn by non-Spider creatures.
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{2}{U}{U}
Archmage Emeritus
Creature - Human Wizard
Magecraft -- Whenever you cast or copy an instant or sorcery spell, draw a card.
2 /
2
{2}{G}{U}
Arixmethes, Slumbering Isle
Legendary Creature - Kraken
Arixmethes, Slumbering Isle enters the battlefield tapped with five slumber counters on it.
As long as Arixmethes has a slumber counter on it, it's a land. (It's not a creature.)
Whenever you cast a spell, you may remove a slumber counter from Arixmethes.
{T}: Add {G}{U}.
12 /
12
{1}{U}
Artisan of Forms
Creature - Human Wizard
Heroic -- Whenever you cast a spell that targets Artisan of Forms, you may have Artisan of Forms become a copy of target creature, except it has this ability.
1 /
1
{2}{G}
Beast Within
Instant
Destroy target permanent. Its controller creates a 3/3 green Beast creature token.
{1}{G}
Belt of Giant Strength
Artifact - Equipment
Equipped creature has base power and toughness 10/10.
Equip {10}. This ability costs {X} less to activate, where X is the power of the creature it targets.
{G}
Berserk
Instant
Cast this spell only before the combat damage step.
Target creature gains trample and gets +X/+0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.
{X}{G/U}{G/U}
Biomass Mutation
Instant
Creatures you control have base power and toughness X/X until end of turn.
{G}
Blossoming Defense
Instant
Target creature you control gets +2/+2 and gains hexproof until end of turn.
{4}{U}
Candlekeep Inspiration
Sorcery
Until end of turn, creatures you control have base power and toughness X/X, where X is the number of cards you own in exile and in your graveyard that are instant cards, are sorcery cards, and/or have an Adventure.
{U}
Cerulean Wisps
Instant
Target creature becomes blue until end of turn. Untap that creature.
Draw a card.
{2}{G}{G}
Chameleon Colossus
Creature - Shapeshifter
Changeling (This card is every creature type.)
Protection from black
{2}{G}{G}: Chameleon Colossus gets +X/+X until end of turn, where X is its power.
4 /
4
{1}{G}{G}
Champion of Lambholt
Creature - Human Warrior
Creatures with power less than Champion of Lambholt's power can't block creatures you control.
Whenever another creature enters the battlefield under your control, put a +1/+1 counter on Champion of Lambholt.
1 /
1
{G}
Charge Through
Instant
Target creature gains trample until end of turn.
Draw a card.
{1}{U}
Chart a Course
Sorcery
Draw two cards. Then discard a card unless you attacked this turn.
{U}
Cloak of Feathers
Sorcery
Target creature gains flying until end of turn.
Draw a card.
{2}{G}
Cultivate
Sorcery
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
{3}{G}{G}
Cultivator of Blades
Creature - Elf Artificer
Fabricate 2 (When this creature enters the battlefield, put two +1/+1 counters on it or create two 1/1 colorless Servo artifact creature tokens.)
Whenever Cultivator of Blades attacks, you may have other attacking creatures get +X/+X until end of turn, where X is Cultivator of Blades's power.
1 /
1
{1}{U}
Cyclonic Rift
Instant
Return target nonland permanent you don't control to its owner's hand.
Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
{1}{U}
Dance of the Skywise
Instant
Until end of turn, target creature you control becomes a blue Dragon Illusion with base power and toughness 4/4, loses all abilities, and gains flying.
{4}{U}
Deekah, Fractal Theorist
Legendary Creature - Human Wizard
Magecraft -- Whenever you cast or copy an instant or sorcery spell, create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is that spell's mana value.
{3}{U}: Target creature token can't be blocked this turn.
3 /
3
{1}{G}
Deeproot Champion
Creature - Merfolk Shaman
Whenever you cast a noncreature spell, put a +1/+1 counter on Deeproot Champion.
1 /
1
{3}{U}{U}
Docent of Perfection
Creature - Insect Horror
Flying
Whenever you cast an instant or sorcery spell, create a 1/1 blue Human Wizard creature token. Then if you control three or more Wizards, transform Docent of Perfection.
5 /
4
--
Final Iteration
Creature - Eldrazi Insect
Flying
Wizards you control get +2/+1 and have flying.
Whenever you cast an instant or sorcery spell, create a 1/1 blue Human Wizard creature token.
5 /
4
{4}
Dragon Throne of Tarkir
Legendary Artifact - Equipment
Equipped creature has defender and "{2}, {T}: Other creatures you control gain trample and get +X/+X until end of turn, where X is this creature's power."
Equip {3}
{1}{G}
Dragonsguard Elite
Creature - Human Druid
Magecraft -- Whenever you cast or copy an instant or sorcery spell, put a +1/+1 counter on Dragonsguard Elite.
{4}{G}{G}: Double the number of +1/+1 counters on Dragonsguard Elite.
2 /
2
{3}{G}{G}
Enlarge
Sorcery
Target creature gets +7/+7 and gains trample until end of turn. It must be blocked this turn if able. (A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.)
{X}{X}{G}{G}
Exponential Growth
Sorcery
Until end of turn, double target creature's power X times.
{1}{G}
Farseek
Sorcery
Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.
{3}
Fireshrieker
Artifact - Equipment
Equipped creature has double strike. (It deals both first-strike and regular combat damage.)
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)
{1}{G}
Gaea's Gift
Instant
Put a +1/+1 counter on target creature you control. It gains reach, trample, hexproof, and indestructible until end of turn. (It can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)
{2}{U}
Gale, Waterdeep Prodigy
Legendary Creature - Human Wizard
Whenever you cast an instant or sorcery spell from your hand, you may cast up to one target card of the other type from your graveyard. If a spell cast from your graveyard this way would be put into your graveyard, exile it instead.
Choose a Background (You can have a Background as a second commander.)
1 /
3
{3}{G}{G}{G}
Gargos, Vicious Watcher
Legendary Creature - Hydra
Vigilance
Hydra spells you cast cost {4} less to cast.
Whenever a creature you control becomes the target of a spell, Gargos, Vicious Watcher fights up to one target creature you don't control.
8 /
7
{G}
Giant Growth
Instant
Target creature gets +3/+3 until end of turn.
{3}{G}{G}
Gigantiform
Enchantment - Aura
Kicker {4}
Enchant creature
Enchanted creature has base power and toughness 8/8 and has trample.
When Gigantiform enters the battlefield, if it was kicked, you may search your library for a card named Gigantiform, put it onto the battlefield, then shuffle.
{3}{U}
Gigantoplasm
Creature - Shapeshifter
You may have Gigantoplasm enter the battlefield as a copy of any creature on the battlefield, except it has "{X}: This creature has base power and toughness X/X."
0 /
0
{U/P}
Gitaxian Probe
Sorcery
({U/P} can be paid with either {U} or 2 life.)
Look at target player's hand.
Draw a card.
{2}{G}{G}
Gnarlback Rhino
Creature - Rhino
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Whenever you cast a spell that targets Gnarlback Rhino, draw a card.
4 /
4
{2}{G}
Guardian Augmenter
Creature - Troll Wizard
Flash
Commander creatures you control get +2/+2.
Commanders you control have hexproof.
2 /
2
{1}{U}{U}
Haughty Djinn
Creature - Djinn
Flying
Haughty Djinn's power is equal to the number of instant and sorcery cards in your graveyard.
Instant and sorcery spells you cast cost {1} less to cast.
* /
4
{1}{G}
Heroic Intervention
Instant
Permanents you control gain hexproof and indestructible until end of turn.
{4}{G}
Hunter's Prowess
Sorcery
Until end of turn, target creature gets +3/+3 and gains trample and "Whenever this creature deals combat damage to a player, draw that many cards."
{X}{G}{U}
Hydroid Krasis
Creature - Jellyfish Hydra Beast
When you cast this spell, you gain half X life and draw half X cards. Round down each time.
Flying, trample
Hydroid Krasis enters the battlefield with X +1/+1 counters on it.
0 /
0
{2}{G}
Invigorate
Instant
If you control a Forest, rather than pay this spell's mana cost, you may have an opponent gain 3 life.
Target creature gets +4/+4 until end of turn.
{1}{U}
Invisible Stalker
Creature - Human Rogue
Hexproof (This creature can't be the target of spells or abilities your opponents control.)
Invisible Stalker can't be blocked.
1 /
1
{G}{U}
Ivy, Gleeful Spellthief
Legendary Creature - Faerie Rogue
Flying
Whenever a player casts a spell that targets only a single creature other than Ivy, Gleeful Spellthief, you may copy that spell. The copy targets Ivy. (A copy of an Aura spell becomes a token.)
2 /
1
{2}{G}
Kodama's Reach
Sorcery - Arcane
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
{1}{G}
Larger Than Life
Sorcery
Target creature gets +4/+4 and gains trample until end of turn.
{U}
Leap
Instant
Target creature gains flying until end of turn.
Draw a card.
{2}
Leering Emblem
Artifact - Equipment
Whenever you cast a spell, equipped creature gets +2/+2 until end of turn.
Equip {2}
{2}
Lightning Greaves
Artifact - Equipment
Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}
{2}{G}
Managorger Hydra
Creature - Hydra
Trample
Whenever a player casts a spell, put a +1/+1 counter on Managorger Hydra.
1 /
1
{3}{U}{U}
Metallurgic Summonings
Enchantment
Whenever you cast an instant or sorcery spell, create an X/X colorless Construct artifact creature token, where X is that spell's mana value.
{3}{U}{U}, Exile Metallurgic Summonings: Return all instant and sorcery cards from your graveyard to your hand. Activate only if you control six or more artifacts.
{G}
Might of Old Krosa
Instant
Target creature gets +2/+2 until end of turn. If you cast this spell during your main phase, that creature gets +4/+4 until end of turn instead.
{1}{G}
Might of the Old Ways
Instant
Target creature gets +2/+2 until end of turn.
Coven -- Then if you control three or more creatures with different powers, draw a card.
{4}{G}
Monstrous Step
Sorcery
Target creature gets +7/+7 until end of turn. Up to one other target creature blocks it this turn if able.
Cycling {2} ({2}, Discard this card: Draw a card.)
{1}{U}
Mordenkainen's Polymorph
Instant
Until end of turn, target creature becomes a Dragon with base power and toughness 4/4 and gains flying. (It loses all other creature types.)
{3}{U}
Murmuring Mystic
Creature - Human Wizard
Whenever you cast an instant or sorcery spell, create a 1/1 blue Bird Illusion creature token with flying.
1 /
5
{G/P}
Mutagenic Growth
Instant
({G/P} can be paid with either {G} or 2 life.)
Target creature gets +2/+2 until end of turn.
{G}
Nature's Claim
Instant
Destroy target artifact or enchantment. Its controller gains 4 life.
{1}{G}
Nature's Lore
Sorcery
Search your library for a Forest card, put that card onto the battlefield, then shuffle.
{2}{G}
Nissa's Pilgrimage
Sorcery
Search your library for up to two basic Forest cards, reveal those cards, and put one onto the battlefield tapped and the rest into your hand. Then shuffle.
Spell mastery -- If there are two or more instant and/or sorcery cards in your graveyard, search your library for up to three basic Forest cards instead of two.
{3}{U}{U}
Octopus Umbra
Enchantment - Aura
Enchant creature
Enchanted creature has base power and toughness 8/8 and has "Whenever this creature attacks, you may tap target creature with power 8 or less."
Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)
{3}{U}
Orvar, the All-Form
Legendary Creature - Shapeshifter
Changeling
Whenever you cast an instant or sorcery spell, if it targets one or more other permanents you control, create a token that's a copy of one of those permanents.
When a spell or ability an opponent controls causes you to discard this card, create a token that's a copy of target permanent.
3 /
3
{3}{G}{G}
Overwhelming Stampede
Sorcery
Until end of turn, creatures you control gain trample and get +X/+X, where X is the greatest power among creatures you control.
{0}
Pact of Negation
Instant
Counter target spell.
At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.
{4}{G}{G}
Pathbreaker Ibex
Creature - Goat
Whenever Pathbreaker Ibex attacks, creatures you control gain trample and get +X/+X until end of turn, where X is the greatest power among creatures you control.
3 /
3
{2}{U}
Phantasmal Form
Instant
Until end of turn, up to two target creatures each have base power and toughness 3/3, gain flying, and become blue Illusions in addition to their other colors and types.
Draw a card.
{1}{G}
Poison the Blade
Instant
Target creature gains deathtouch until end of turn.
Draw a card.
{U}
Pongify
Instant
Destroy target creature. It can't be regenerated. Its controller creates a 3/3 green Ape creature token.
{2}{U}
Poppet Stitcher
Creature - Human Wizard
Whenever you cast an instant or sorcery spell, create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)
At the beginning of your upkeep, if you control three or more creature tokens, you may transform Poppet Stitcher.
2 /
3
--
Poppet Factory
Artifact
Creature tokens you control lose all abilities and have base power and toughness 3/3.
At the beginning of your upkeep, you may transform Poppet Factory.
2 /
3
{5}
Precursor Golem
Artifact Creature - Golem
When Precursor Golem enters the battlefield, create two 3/3 colorless Golem artifact creature tokens.
Whenever a player casts an instant or sorcery spell that targets only a single Golem, that player copies that spell for each other Golem that spell could target. Each copy targets a different one of those Golems.
3 /
3
{U}
Preordain
Sorcery
Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
{X}{G}
Primal Might
Sorcery
Target creature you control gets +X/+X until end of turn. Then it fights up to one target creature you don't control.
{5}{G}
Raised by Giants
Legendary Enchantment - Background
Commander creatures you own have base power and toughness 10/10 and are Giants in addition to their other types.
{1}{G}
Rampant Growth
Sorcery
Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
{U}
Rapid Hybridization
Instant
Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.
{1}{G}
Regrowth
Sorcery
Return target card from your graveyard to your hand.
{4}{G}{G}
Revenge of the Hunted
Sorcery
Until end of turn, target creature gets +6/+6 and gains trample, and all creatures able to block it this turn do so.
Miracle {G} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)
{7}{U}{U}
Sailors' Bane
Creature - Dragon Turtle
This spell costs {1} less to cast for each card you own in exile and in your graveyard that's an instant card, a sorcery card, or a card that has an Adventure.
Ward {4} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {4}.)
7 /
7
{G}
Scale Up
Sorcery
Until end of turn, target creature you control becomes a green Wurm with base power and toughness 6/4.
Overload {4}{G}{G} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")
{1}{G}
Season of Growth
Enchantment
Whenever a creature enters the battlefield under your control, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
Whenever you cast a spell that targets a creature you control, draw a card.
{2}{U}
Secrets of the Dead
Enchantment
Whenever you cast a spell from your graveyard, draw a card.
{1}{U}
Serpentine Ambush
Instant
Until end of turn, target creature becomes a blue Serpent with base power and toughness 5/5.
{U}
Shadow Rift
Instant
Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)
Draw a card.
{U}
Sleight of Hand
Sorcery
Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.
{U}
Slip Through Space
Sorcery
Devoid (This card has no color.)
Target creature can't be blocked this turn.
Draw a card.
{3}{U}{U}
Soulblade Djinn
Creature - Djinn
Flying
Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn.
4 /
3
{1}{U}
Stormchaser Drake
Creature - Drake
Flying
Whenever Stormchaser Drake becomes the target of a spell you control, draw a card.
2 /
1
{2}{U}
Suit Up
Instant
Until end of turn, target creature or Vehicle becomes an artifact creature with base power and toughness 4/5.
Draw a card.
{U}
Swan Song
Instant
Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.
{2}
Swiftfoot Boots
Artifact - Equipment
Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)
Equip {1}
{2}
Talisman of Curiosity
Artifact
{T}: Add {C}.
{T}: Add {G} or {U}. Talisman of Curiosity deals 1 damage to you.
{2}{U}{U}
Talrand, Sky Summoner
Legendary Creature - Merfolk Wizard
Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.
2 /
2
{G}
Tamiyo's Safekeeping
Instant
Target permanent you control gains hexproof and indestructible until end of turn. You gain 2 life. (A permanent with hexproof and indestructible can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)
{3}{G}{U}
Tanazir Quandrix
Legendary Creature - Elder Dragon
Flying, trample
When Tanazir Quandrix enters the battlefield, double the number of +1/+1 counters on target creature you control.
Whenever Tanazir Quandrix attacks, you may have the base power and toughness of other creatures you control become equal to Tanazir Quandrix's power and toughness until end of turn.
4 /
4
{2}{U}
Thassa, God of the Sea
Legendary Enchantment Creature - God
Indestructible
As long as your devotion to blue is less than five, Thassa isn't a creature. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)
At the beginning of your upkeep, scry 1.
{1}{U}: Target creature you control can't be blocked this turn.
5 /
5
{1}{G}
Three Visits
Sorcery
Search your library for a Forest card, put it onto the battlefield, then shuffle.
{1}{G}
Titanic Growth
Instant
Target creature gets +4/+4 until end of turn.
{2}{U}
Trawler Drake
Creature - Phyrexian Drake
Flying
Trawler Drake enters the battlefield with an oil counter on it.
Trawler Drake gets +1/+1 for each oil counter on it.
Whenever you cast a noncreature spell, put an oil counter on Trawler Drake.
0 /
0
{2}{U}
Triton Fortune Hunter
Creature - Merfolk Soldier
Heroic -- Whenever you cast a spell that targets Triton Fortune Hunter, draw a card.
2 /
2
{X}{G}
Tyvar's Stand
Instant
Target creature you control gets +X/+X and gains hexproof and indestructible until end of turn. (A creature with hexproof and indestructible can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)
{1}{G}{G}{G}{G}
Unnatural Growth
Enchantment
At the beginning of each combat, double the power and toughness of each creature you control until end of turn.
{1}{G}
Vengeant Earth
Instant
Target creature or land you control becomes a 4/4 Elemental creature with haste in addition to its other types until end of turn. It must be blocked this turn if able.
{1}{G}{U}
Venomthrope
Creature - Tyranid
Flying, deathtouch, hexproof
2 /
2
{3}{U}
Vesuvan Duplimancy
Enchantment
Whenever you cast a spell that targets only a single artifact or creature you control, create a token that's a copy of that artifact or creature, except it's not legendary.
{G}
Vines of Vastwood
Instant
Kicker {G} (You may pay an additional {G} as you cast this spell.)
Target creature can't be the target of spells or abilities your opponents control this turn. If this spell was kicked, that creature gets +4/+4 until end of turn.
{G}
Viridescent Wisps
Instant
Target creature becomes green and gets +1/+0 until end of turn.
Draw a card.
{2}{G}
Wild Beastmaster
Creature - Human Shaman
Whenever Wild Beastmaster attacks, each other creature you control gets +X/+X until end of turn, where X is Wild Beastmaster's power.
1 /
1
{2}{G}
Wild Defiance
Enchantment
Whenever a creature you control becomes the target of an instant or sorcery spell, that creature gets +3/+3 until end of turn.
{2}{G}
Wildsize
Instant
Target creature gets +2/+2 and gains trample until end of turn.
Draw a card.
{2}{U}
Windrider Wizard
Creature - Human Wizard
Flying
Whenever you cast an instant, sorcery, or Wizard spell, you may draw a card. If you do, discard a card.
2 /
2
{2}{U}
Winged Words
Sorcery
This spell costs {1} less to cast if you control a creature with flying.
Draw two cards.
{1}{U}
Zhalfirin Shapecraft
Instant
Target creature has base power and toughness 4/3 until end of turn.
Draw a card.
{5}{G}{G}
Zopandrel, Hunger Dominus
Legendary Creature - Phyrexian Horror
Reach
At the beginning of each combat, double the power and toughness of each creature you control until end of turn.
{G/P}{G/P}, Sacrifice two other creatures: Put an indestructible counter on Zopandrel, Hunger Dominus. ({G/P} can be paid with either {G} or 2 life.)
4 /
6
{1}{G}
Monstrous Growth
Sorcery
Target creature gets +4/+4 until end of turn.
{U}
Ponder
Sorcery
Look at the top three cards of your library, then put them back in any order. You may shuffle.