As long as it's your turn, commanders you control have indestructible. (Effects that say "destroy" don't destroy them. A creature with indestructible can't be destroyed by damage.)
Partner (You can have two commanders if both have partner.)
4 /
4
{U}
Aqueous Form
Enchantment - Aura
Enchant creature
Enchanted creature can't be blocked.
Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{2}{U}
Archaeomender
Creature - Human Wizard
When Archaeomender enters the battlefield, return target artifact card from your graveyard to your hand.
2 /
3
{2}
Armillary Sphere
Artifact
{2}, {T}, Sacrifice Armillary Sphere: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.
{2}{U}
Befuddle
Instant
Target creature gets -4/-0 until end of turn.
Draw a card.
{4}{U}
Belltower Sphinx
Creature - Sphinx
Flying
Whenever a source deals damage to Belltower Sphinx, that source's controller mills that many cards.
2 /
5
{3}{U}
Bonds of Quicksilver
Enchantment - Aura
Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
Enchanted creature doesn't untap during its controller's untap step.
{2}{G}
Broken Wings
Instant
Destroy target artifact, enchantment, or creature with flying.
{1}{U}{U}
Cancel
Instant
Counter target spell.
{3}{U}
Capture Sphere
Enchantment - Aura
Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
When Capture Sphere enters the battlefield, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
{1}{U}{U}
Charmed Sleep
Enchantment - Aura
Enchant creature
When Charmed Sleep enters the battlefield, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
{1}{U}{U}
Claustrophobia
Enchantment - Aura
Enchant creature
When Claustrophobia enters the battlefield, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
{4}{U}{U}
Confiscate
Enchantment - Aura
Enchant permanent
You control enchanted permanent.
{2}{G}
Crushing Canopy
Instant
Choose one --
• Destroy target creature with flying.
• Destroy target enchantment.
{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.
{5}{U}{U}
Cyclone Summoner
Creature - Giant Wizard
When Cyclone Summoner enters the battlefield, if you cast it from your hand, return all permanents to their owners' hands except for Giants, Wizards, and lands.
7 /
7
{1}{U}
Daring Saboteur
Creature - Human Pirate
{2}{U}: Daring Saboteur can't be blocked this turn.
Whenever Daring Saboteur deals combat damage to a player, you may draw a card. If you do, discard a card.
2 /
1
{2}{U}{U}
Devious Cover-Up
Instant
Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may shuffle up to four target cards from your graveyard into your library.
{1}{U}{U}
Didn't Say Please
Instant
Counter target spell. Its controller mills three cards.
{1}{U}
Disdainful Stroke
Instant
Counter target spell with mana value 4 or greater.
{4}{U}{U}
Eligeth, Crossroads Augur
Legendary Creature - Sphinx
Flying
If you would scry a number of cards, draw that many cards instead.
Partner (You can have two commanders if both have partner.)
5 /
6
{2}{G}
Fade into Antiquity
Sorcery
Exile target artifact or enchantment.
{U}{U}
Flood of Recollection
Sorcery
Return target instant or sorcery card from your graveyard to your hand. Exile Flood of Recollection.
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
{2}{U}
Frost Breath
Instant
Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.
{X}{G}{G}
Genesis Hydra
Creature - Plant Hydra
When you cast this spell, reveal the top X cards of your library. You may put a nonland permanent card with mana value X or less from among them onto the battlefield. Then shuffle the rest into your library.
Genesis Hydra enters the battlefield with X +1/+1 counters on it.
0 /
0
--
Gingerbread Cabin
Land - Forest
({T}: Add {G}.)
Gingerbread Cabin enters the battlefield tapped unless you control three or more other Forests.
When Gingerbread Cabin enters the battlefield untapped, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")
{3}{G}
Halana, Kessig Ranger
Legendary Creature - Human Archer Ranger
Reach
Whenever another creature enters the battlefield under your control, you may pay {2}. When you do, that creature deals damage equal to its power to target creature.
Partner (You can have two commanders if both have partner.)
3 /
4
{4}
Hedron Archive
Artifact
{T}: Add {C}{C}.
{2}, {T}, Sacrifice Hedron Archive: Draw two cards.
{3}{G}{U}
Imoti, Celebrant of Bounty
Legendary Creature - Naga Druid
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)
Spells you cast with mana value 6 or greater have cascade.
3 /
1
{5}{U}{U}
Into the Story
Instant
This spell costs {3} less to cast if an opponent has seven or more cards in their graveyard.
Draw four cards.
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{1}{U}
Keen Glidemaster
Creature - Human Soldier
{2}{U}: Target creature gains flying until end of turn.
2 /
1
{1}{G}
Kenrith's Transformation
Enchantment - Aura
Enchant creature
When Kenrith's Transformation enters the battlefield, draw a card.
Enchanted creature loses all abilities and is a green Elk creature with base power and toughness 3/3. (It loses all other card types and creature types.)
{2}{G}
Lead the Stampede
Sorcery
Look at the top five cards of your library. You may reveal any number of creature cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in any order.
--
Littjara Mirrorlake
Land
Littjara Mirrorlake enters the battlefield tapped.
{T}: Add {U}.
{2}{G}{G}{U}, {T}, Sacrifice Littjara Mirrorlake: Create a token that's a copy of target creature you control, except it enters the battlefield with an additional +1/+1 counter on it. Activate only as a sorcery.
{2}{G}
Llanowar Visionary
Creature - Elf Druid
When Llanowar Visionary enters the battlefield, draw a card.
{T}: Add {G}.
2 /
2
{4}
Maskwood Nexus
Artifact
Creatures you control are every creature type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.
{3}, {T}: Create a 2/2 blue Shapeshifter creature token with changeling. (It is every creature type.)
{U}{ // }{U}
Merfolk Secretkeeper // Venture Deeper
Creature - Merfolk Wizard // Sorcery - Adventure
Target player mills four cards. (Then exile this card. You may cast the creature later from exile.)
0 /
4
--
Mystic Sanctuary
Land - Island
({T}: Add {U}.)
Mystic Sanctuary enters the battlefield tapped unless you control three or more other Islands.
When Mystic Sanctuary enters the battlefield untapped, you may put target instant or sorcery card from your graveyard on top of your library.
{4}{G}
Nylea's Forerunner
Enchantment Creature - Beast
Trample
Other creatures you control have trample.
5 /
3
--
Path of Ancestry
Land
Path of Ancestry enters the battlefield tapped.
{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
{3}
Pilgrim's Eye
Artifact Creature - Thopter
Flying
When Pilgrim's Eye enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.
1 /
1
{4}{U}
Prosperous Pirates
Creature - Human Pirate
When Prosperous Pirates enters the battlefield, create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")
3 /
4
{2}{G}
Reclamation Sage
Creature - Elf Shaman
When Reclamation Sage enters the battlefield, you may destroy target artifact or enchantment.
2 /
1
{1}{G}
Return to Nature
Instant
Choose one --
• Destroy target artifact.
• Destroy target enchantment.
• Exile target card from a graveyard.
{3}{G}
Return to the Earth
Instant
Destroy target artifact, enchantment, or creature with flying.
{1}
Runed Stalactite
Artifact - Equipment
Equipped creature gets +1/+1 and is every creature type.
Equip {2}
{1}{U}{U}
Saw It Coming
Instant
Counter target spell.
Foretell {1}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
{3}{U}
Scholar of Stars
Creature - Human Artificer
When Scholar of Stars enters the battlefield, if you control an artifact, draw a card.
3 /
2
{2}{U}
Selhoff Occultist
Creature - Human Rogue
Whenever Selhoff Occultist or another creature dies, target player mills a card.
2 /
3
{3}{U}{U}
Serra Sphinx
Creature - Sphinx
Flying, vigilance
4 /
4
{U}
Siren Stormtamer
Creature - Siren Pirate Wizard
Flying
{U}, Sacrifice Siren Stormtamer: Counter target spell or ability that targets you or a creature you control.
1 /
1
{4}
Sisay's Ring
Artifact
{T}: Add {C}{C}.
{3}{G}
Skyshroud Claim
Sorcery
Search your library for up to two Forest cards, put them onto the battlefield, then shuffle.
{U}
So Tiny
Enchantment - Aura
Flash
Enchant creature
Enchanted creature gets -2/-0. It gets -6/-0 instead as long as its controller has seven or more cards in their graveyard.
{3}{G}{G}
Sporemound
Creature - Fungus
Landfall -- Whenever a land enters the battlefield under your control, create a 1/1 green Saproling creature token.
3 /
3
{4}{G}
Thragtusk
Creature - Beast
When Thragtusk enters the battlefield, you gain 5 life.
When Thragtusk leaves the battlefield, create a 3/3 green Beast creature token.
5 /
3
--
Thriving Isle
Land
Thriving Isle enters the battlefield tapped.
As Thriving Isle enters the battlefield, choose a color other than blue.
{T}: Add {U} or one mana of the chosen color.
{3}{G}
Toski, Bearer of Secrets
Legendary Creature - Squirrel
This spell can't be countered.
Indestructible
Toski, Bearer of Secrets attacks each combat if able.
Whenever a creature you control deals combat damage to a player, draw a card.
1 /
1
{1}{U}
Towering-Wave Mystic
Creature - Merfolk Wizard
Whenever Towering-Wave Mystic deals damage, target player mills that many cards.
2 /
1
--
Tropical Island
Land - Forest Island
({T}: Add {G} or {U}.)
{4}{U}
Unexplained Vision
Sorcery
Draw three cards.
Adamant -- If at least three blue mana was spent to cast this spell, scry 3.
{3}{U}
Vantress Paladin
Creature - Human Knight
Flying
Adamant -- If at least three blue mana was spent to cast this spell, Vantress Paladin enters the battlefield with a +1/+1 counter on it.
2 /
2
{2}{U}
Warden of Evos Isle
Creature - Bird Wizard
Flying
Creature spells with flying you cast cost {1} less to cast.
2 /
2
{4}
Weapon Rack
Artifact
Weapon Rack enters the battlefield with three +1/+1 counters on it.
{T}: Move a +1/+1 counter from Weapon Rack onto target creature. Activate only as a sorcery.
{3}{G}{G}
Woodborn Behemoth
Creature - Elemental
As long as you control eight or more lands, Woodborn Behemoth gets +4/+4 and has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)
4 /
4
{2}{G}
Woodland Patrol
Creature - Human Scout
Vigilance
3 /
2
{G}{G}{G}
Yorvo, Lord of Garenbrig
Legendary Creature - Giant Noble
Yorvo, Lord of Garenbrig enters the battlefield with four +1/+1 counters on it.
Whenever another green creature enters the battlefield under your control, put a +1/+1 counter on Yorvo. Then if that creature's power is greater than Yorvo's power, put another +1/+1 counter on Yorvo.