Target creature gets +2/+2 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
{4}
Aetherflux Reservoir
Artifact
Whenever you cast a spell, you gain 1 life for each spell you've cast this turn.
Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.
{W}
Ajani's Presence
Instant
Strive -- This spell costs {2}{W} more to cast for each target beyond the first.
Any number of target creatures each get +1/+1 and gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)
{W}
Alley Evasion
Instant
Choose one --
• Target creature you control gets +1/+2 until end of turn.
• Return target creature you control to its owner's hand.
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{W}
Arrester's Zeal
Instant
Target creature gets +2/+2 until end of turn.
Addendum -- If you cast this spell during your main phase, that creature gains flying until end of turn.
{R}
Barge In
Instant
Target attacking creature gets +2/+2 until end of turn. Each attacking non-Human creature gains trample until end of turn.
{R}{W}
Boros Charm
Instant
Choose one --
• Boros Charm deals 4 damage to target player or planeswalker.
• Permanents you control gain indestructible until end of turn.
• Target creature gains double strike until end of turn.
--
Boros Garrison
Land
Boros Garrison enters the battlefield tapped.
When Boros Garrison enters the battlefield, return a land you control to its owner's hand.
{T}: Add {R}{W}.
--
Boros Guildgate
Land - Gate
Boros Guildgate enters the battlefield tapped.
{T}: Add {R} or {W}.
{R}
Borrowed Hostility
Instant
Escalate {3} (Pay this cost for each mode chosen beyond the first.)
Choose one or both --
• Target creature gets +3/+0 until end of turn.
• Target creature gains first strike until end of turn.
{R}
Brute Force
Instant
Target creature gets +3/+3 until end of turn.
{1}{R}
Brute Strength
Instant
Target creature gets +3/+1 and gains trample until end of turn.
{R}
Built to Smash
Instant
Target attacking creature gets +3/+3 until end of turn. If it's an artifact creature, it gains trample until end of turn.
{R}
Bull Rush
Instant
Target creature gets +2/+0 until end of turn.
--
Cave of Temptation
Land
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{4}, {T}, Sacrifice Cave of Temptation: Put two +1/+1 counters on target creature. Activate only as a sorcery.
--
Clifftop Retreat
Land
Clifftop Retreat enters the battlefield tapped unless you control a Mountain or a Plains.
{T}: Add {R} or {W}.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{R}
Crimson Wisps
Instant
Target creature becomes red and gains haste until end of turn.
Draw a card.
{W}
Defiant Strike
Instant
Target creature gets +1/+0 until end of turn.
Draw a card.
{1}{R/W}
Double Cleave
Instant
Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)
--
Eiganjo Castle
Legendary Land
{T}: Add {W}.
{W}, {T}: Prevent the next 2 damage that would be dealt to target legendary creature this turn.
{1}{R}
Electrostatic Field
Creature - Wall
Defender
Whenever you cast an instant or sorcery spell, Electrostatic Field deals 1 damage to each opponent.
0 /
4
{3}{R}
Erratic Cyclops
Creature - Cyclops Shaman
Trample
Whenever you cast an instant or sorcery spell, Erratic Cyclops gets +X/+0 until end of turn, where X is that spell's mana value.
0 /
8
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{R}
Expedite
Instant
Target creature gains haste until end of turn.
Draw a card.
{1}{W}
Feat of Resistance
Instant
Put a +1/+1 counter on target creature you control. It gains protection from the color of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that color.)
{R}{W}{W}
Feather, the Redeemed
Legendary Creature - Angel
Flying
Whenever you cast an instant or sorcery spell that targets a creature you control, exile that card instead of putting it into your graveyard as it resolves. If you do, return it to your hand at the beginning of the next end step.
3 /
4
{1}{R}
Firebrand Archer
Creature - Human Archer
Whenever you cast a noncreature spell, Firebrand Archer deals 1 damage to each opponent.
2 /
1
{1}{R}
Fists of Flame
Instant
Draw a card. Until end of turn, target creature gains trample and gets +1/+0 for each card you've drawn this turn.
{1}{R}
Fists of the Anvil
Instant
Target creature gets +4/+0 until end of turn.
{W}{ // }{2}{W}
Giant Killer // Chop Down
Creature - Human Peasant // Instant - Adventure
{1}{W}, {T}: Tap target creature.
Destroy target creature with power 4 or greater. (Then exile this card. You may cast the creature later from exile.)
1 /
2
{W}
Gods Willing
Instant
Target creature you control gains protection from the color of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that color.)
Scry 1.
{1}{R}
Grapeshot
Sorcery
Grapeshot deals 1 damage to any target.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)
{3}{R}
Gravitic Punch
Sorcery
Target creature you control deals damage equal to its power to target player.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)
{2}{R}
Guttersnipe
Creature - Goblin Shaman
Whenever you cast an instant or sorcery spell, Guttersnipe deals 2 damage to each opponent.
2 /
2
{3}{W}{W}{W}
Hour of Revelation
Sorcery
This spell costs {3} less to cast if there are ten or more nonland permanents on the battlefield.
Destroy all nonland permanents.
{1}{R}
Invigorated Rampage
Instant
Choose one --
• Target creature gets +4/+0 and gains trample until end of turn.
• Two target creatures each get +2/+0 and gain trample until end of turn.
{1}
Library of Leng
Artifact
You have no maximum hand size.
If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.
{3}{R}{R}
Mirrorwing Dragon
Creature - Dragon
Flying
Whenever a player casts an instant or sorcery spell that targets only Mirrorwing Dragon, that player copies that spell for each other creature they control that the spell could target. Each copy targets a different one of those creatures.
4 /
5
{W}
Moment of Triumph
Instant
Target creature gets +2/+2 until end of turn. You gain 2 life.
{W}
Mortal's Ardor
Instant
Target creature gets +1/+1 and gains lifelink until end of turn. (Damage dealt by the creature also causes its controller to gain that much life.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Myriad Landscape
Land
Myriad Landscape enters the battlefield tapped.
{T}: Add {C}.
{2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.
{W}
Path to Exile
Instant
Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
{1}{R}
Psychotic Fury
Instant
Target multicolored creature gains double strike until end of turn.
Draw a card.
{3}{R}
Pyre Hound
Creature - Elemental Dog
Trample
Whenever you cast an instant or sorcery spell, put a +1/+1 counter on Pyre Hound.
2 /
3
{5}
Pyromancer's Goggles
Legendary Artifact
{T}: Add {R}. When that mana is spent to cast a red instant or sorcery spell, copy that spell and you may choose new targets for the copy.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
{R}
Rile
Sorcery
Rile deals 1 damage to target creature you control. That creature gains trample until end of turn.
Draw a card.
{1}{R}{ // }{R}
Rimrock Knight // Boulder Rush
Creature - Dwarf Knight // Instant - Adventure
Rimrock Knight can't block.
Target creature gets +2/+0 until end of turn. (Then exile this card. You may cast the creature later from exile.)
3 /
1
--
Rogue's Passage
Land
{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.
{1}{R}
Run Amok
Instant
Target attacking creature gets +3/+3 and gains trample until end of turn.
--
Sacred Foundry
Land - Mountain Plains
({T}: Add {R} or {W}.)
As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
{R}
Samut's Sprint
Instant
Target creature gets +2/+1 and gains haste until end of turn. Scry 1.
{3}{R}
Seize the Day
Sorcery
Untap target creature. After this main phase, there is an additional combat phase followed by an additional main phase.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
{4}
Sentinel Tower
Artifact
Whenever an instant or sorcery spell is cast during your turn, Sentinel Tower deals damage to any target equal to 1 plus the number of instant and sorcery spells cast before that spell this turn.
{1}{W}
Shelter
Instant
Target creature you control gains protection from the color of your choice until end of turn.
Draw a card.
{W}
Sheltering Light
Instant
Target creature gains indestructible until end of turn. Scry 1. (Damage and effects that say "destroy" don't destroy the creature.)
--
Shinka, the Bloodsoaked Keep
Legendary Land
{T}: Add {R}.
{R}, {T}: Target legendary creature gains first strike until end of turn.
{2}{W}
Shoulder to Shoulder
Sorcery
Support 2. (Put a +1/+1 counter on each of up to two target creatures.)
Draw a card.
--
Slayers' Stronghold
Land
{T}: Add {C}.
{R}{W}, {T}: Target creature gets +2/+0 and gains vigilance and haste until end of turn.
{2}{R}
Smelt-Ward Minotaur
Creature - Minotaur Warrior
Whenever you cast an instant or sorcery spell, target creature an opponent controls can't block this turn.
2 /
3
{2}{R}
Soul's Fire
Instant
Target creature you control deals damage equal to its power to any target.
{7}
Sphinx-Bone Wand
Artifact
Whenever you cast an instant or sorcery spell, you may put a charge counter on Sphinx-Bone Wand. If you do, Sphinx-Bone Wand deals damage equal to the number of charge counters on it to any target.
{W}
Steelshaper's Gift
Sorcery
Search your library for an Equipment card, reveal that card, put it into your hand, then shuffle.
{3}
Sunforger
Artifact - Equipment
Equipped creature gets +4/+0.
{R}{W}, Unattach Sunforger: Search your library for a red or white instant card with mana value 4 or less and cast that card without paying its mana cost. Then shuffle.
Equip {3}
--
Sunhome, Fortress of the Legion
Land
{T}: Add {C}.
{2}{R}{W}, {T}: Target creature gains double strike until end of turn.
{1}{R}
Sure Strike
Instant
Target creature gets +3/+0 and gains first strike until end of turn.
{W}
Swords to Plowshares
Instant
Exile target creature. Its controller gains life equal to its power.
{W}
Take Heart
Instant
Target creature gets +2/+2 until end of turn. You gain 1 life for each attacking creature you control.
--
Temple of Triumph
Land
Temple of Triumph enters the battlefield tapped.
When Temple of Triumph enters the battlefield, scry 1.
{T}: Add {R} or {W}.
{1}{R}
Temur Battle Rage
Instant
Target creature gains double strike until end of turn.
Ferocious -- That creature also gains trample until end of turn if you control a creature with power 4 or greater.
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{1}{R}
Thermo-Alchemist
Creature - Human Shaman
Defender
{T}: Thermo-Alchemist deals 1 damage to each opponent.
Whenever you cast an instant or sorcery spell, untap Thermo-Alchemist.
0 /
3
{2}
Thought Vessel
Artifact
You have no maximum hand size.
{T}: Add {C}.
{R}
Titan's Strength
Instant
Target creature gets +3/+1 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{1}{W}
Valorous Stance
Instant
Choose one --
• Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
• Destroy target creature with toughness 4 or greater.
{W}
Vampire's Zeal
Instant
Target creature gets +2/+2 until end of turn. If it's a Vampire, it gains first strike until end of turn.
{5}
Venser's Journal
Artifact
You have no maximum hand size.
At the beginning of your upkeep, you gain 1 life for each card in your hand.
{2}{R}
Weaver of Lightning
Creature - Human Shaman
Reach
Whenever you cast an instant or sorcery spell, Weaver of Lightning deals 1 damage to target creature an opponent controls.
1 /
4
--
Wind-Scarred Crag
Land
Wind-Scarred Crag enters the battlefield tapped.
When Wind-Scarred Crag enters the battlefield, you gain 1 life.
{T}: Add {R} or {W}.
{1}{R}
Young Pyromancer
Creature - Human Shaman
Whenever you cast an instant or sorcery spell, create a 1/1 red Elemental creature token.
2 /
1
{3}{R}
Zada, Hedron Grinder
Legendary Creature - Goblin Ally
Whenever you cast an instant or sorcery spell that targets only Zada, Hedron Grinder, copy that spell for each other creature you control that the spell could target. Each copy targets a different one of those creatures.