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.
{R}
Akroan Crusader
Creature - Human Soldier
Heroic -- Whenever you cast a spell that targets Akroan Crusader, create a 1/1 red Soldier creature token with haste.
1 /
1
{1}{R}{W}
Anax and Cymede
Legendary Creature - Human Soldier
First strike, vigilance
Heroic -- Whenever you cast a spell that targets Anax and Cymede, creatures you control get +1/+1 and gain trample until end of turn.
3 /
2
{1}{W/P}
Apostle's Blessing
Instant
({W/P} can be paid with either {W} or 2 life.)
Target artifact or creature you control gains protection from artifacts or from the color of your choice until end of turn.
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
--
Arid Mesa
Land
{T}, Pay 1 life, Sacrifice Arid Mesa: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.
{2}{R/W}{R/W}{R/W}
Balefire Liege
Creature - Spirit Horror
Other red creatures you control get +1/+1.
Other white creatures you control get +1/+1.
Whenever you cast a red spell, Balefire Liege deals 3 damage to target player or planeswalker.
Whenever you cast a white spell, you gain 3 life.
2 /
4
{W}
Bandage
Instant
Prevent the next 1 damage that would be dealt to any target this turn.
Draw a card.
--
Battlefield Forge
Land
{T}: Add {C}.
{T}: Add {R} or {W}. Battlefield Forge deals 1 damage to you.
{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}.
{2}
Boros Signet
Artifact
{1}, {T}: Add {R}{W}.
{R}
Brute Force
Instant
Target creature gets +3/+3 until end of turn.
--
Clifftop Retreat
Land
Clifftop Retreat enters the battlefield tapped unless you control a Mountain or a Plains.
{T}: Add {R} or {W}.
{W}
Cloudshift
Instant
Exile target creature you control, then return that card to the battlefield under your control.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{3}
Commander's Sphere
Artifact
{T}: Add one mana of any color in your commander's color identity.
Sacrifice Commander's Sphere: Draw a card.
{R}
Crimson Wisps
Instant
Target creature becomes red and gains haste until end of turn.
Draw a card.
{2}{W}{W}
Dawnbringer Charioteers
Creature - Human Soldier
Flying, lifelink
Heroic -- Whenever you cast a spell that targets Dawnbringer Charioteers, put a +1/+1 counter on Dawnbringer Charioteers.
2 /
4
{W}
Defiant Strike
Instant
Target creature gets +1/+0 until end of turn.
Draw a card.
{3}{R}{R}
Double Vision
Enchantment
Whenever you cast your first instant or sorcery spell each turn, copy that spell. You may choose new targets for the copy.
{1}{R}
Dreadhorde Arcanist
Creature - Zombie Wizard
Trample
Whenever Dreadhorde Arcanist attacks, you may cast target instant or sorcery card with mana value less than or equal to Dreadhorde Arcanist's power from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.
1 /
3
{2}{W}
Eerie Interlude
Instant
Exile any number of target creatures you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.
{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
--
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}{W}
Fabled Hero
Creature - Human Soldier
Double strike
Heroic -- Whenever you cast a spell that targets Fabled Hero, put a +1/+1 counter on Fabled Hero.
2 /
2
{W}
Favored Hoplite
Creature - Human Soldier
Heroic -- Whenever you cast a spell that targets Favored Hoplite, put a +1/+1 counter on Favored Hoplite and prevent all damage that would be dealt to it this turn.
1 /
2
{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
{4}{W}
Fell the Mighty
Sorcery
Destroy all creatures with power greater than target creature's power.
{W}
Fight as One
Instant
Choose one or both --
• Target Human creature you control gets +1/+1 and gains indestructible until end of turn.
• Target non-Human creature you control gets +1/+1 and gains indestructible until end of turn.
{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.
{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}{W}
Guided Strike
Instant
Target creature gets +1/+0 and gains first strike until end of turn.
Draw a card.
{2}{R}
Guttersnipe
Creature - Goblin Shaman
Whenever you cast an instant or sorcery spell, Guttersnipe deals 2 damage to each opponent.
2 /
2
{1}{R}
Impact Resonance
Instant
Impact Resonance deals X damage divided as you choose among any number of target creatures, where X is the greatest amount of damage dealt by a source to a permanent or player this 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
{2}{W}
Monastery Mentor
Creature - Human Monk
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, create a 1/1 white Monk creature token with prowess.
2 /
2
--
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}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Needleverge Pathway
Land
{T}: Add {R}.
--
Pillarverge Pathway
Land
{T}: Add {W}.
{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.
{W}{W}
Phalanx Leader
Creature - Human Soldier
Heroic -- Whenever you cast a spell that targets Phalanx Leader, put a +1/+1 counter on each creature you control.
1 /
1
--
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}.)
--
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}.)
--
Plateau
Land - Mountain Plains
({T}: Add {R} or {W}.)
{4}
Primal Amulet
Artifact
Instant and sorcery spells you cast cost {1} less to cast.
Whenever you cast an instant or sorcery spell, put a charge counter on Primal Amulet. Then if there are four or more charge counters on it, you may remove those counters and transform it.
--
Primal Wellspring
Land
(Transforms from Primal Amulet.)
{T}: Add one mana of any color. When that mana is spent to cast an instant or sorcery spell, copy that spell and you may choose new targets for the copy.
{1}{R}
Psychotic Fury
Instant
Target multicolored creature gains double strike until end of turn.
Draw a card.
{R}
Reckless Charge
Sorcery
Target creature gets +3/+0 and gains haste until end of turn.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
{R}
Reckless Rage
Instant
Reckless Rage deals 4 damage to target creature you don't control and 2 damage to target creature you control.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
--
Rugged Prairie
Land
{T}: Add {C}.
{R/W}, {T}: Add {R}{R}, {R}{W}, or {W}{W}.
{1}{R}
Runaway Steam-Kin
Creature - Elemental
Whenever you cast a red spell, if Runaway Steam-Kin has fewer than three +1/+1 counters on it, put a +1/+1 counter on Runaway Steam-Kin.
Remove three +1/+1 counters from Runaway Steam-Kin: Add {R}{R}{R}.
1 /
1
--
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.)
{1}{W}
Sejiri Shelter
Instant
Target creature you control gains protection from the color of your choice until end of turn.
--
Sejiri Glacier
Land
Sejiri Glacier enters the battlefield tapped.
{T}: Add {W}.
{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.)
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{4}
Solemn Simulacrum
Artifact Creature - Golem
When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
When Solemn Simulacrum dies, you may draw a card.
2 /
2
{2}{R}
Soul's Fire
Instant
Target creature you control deals damage equal to its power to any target.
{0}
Spellbook
Artifact
You have no maximum hand size.
{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}
{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}
{W}
Swords to Plowshares
Instant
Exile target creature. Its controller gains life equal to its power.
{2}
Talisman of Conviction
Artifact
{T}: Add {C}.
{T}: Add {R} or {W}. Talisman of Conviction deals 1 damage to you.
{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.
{R}{W}
Tenth District Legionnaire
Creature - Human Soldier
Haste
Whenever you cast a spell that targets Tenth District Legionnaire, put a +1/+1 counter on Tenth District Legionnaire, then scry 1.
2 /
2
{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}{R}
Unleash Fury
Instant
Double the power of target creature until end of turn.
{W}{W}
Vanguard of Brimaz
Creature - Cat Soldier
Vigilance
Heroic -- Whenever you cast a spell that targets Vanguard of Brimaz, create a 1/1 white Cat Soldier creature token with vigilance.
2 /
2
{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.
{1}
Wayfarer's Bauble
Artifact
{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
--
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.
3 /
3
{W}
Ajani's Welcome
Enchantment
Whenever a creature enters the battlefield under your control, you gain 1 life.
{4}{R}
Akroan Conscriptor
Creature - Human Shaman
Heroic -- Whenever you cast a spell that targets Akroan Conscriptor, gain control of another target creature until end of turn. Untap that creature. It gains haste until end of turn.
3 /
2
{2}{R}
Aria of Flame
Enchantment
When Aria of Flame enters the battlefield, each opponent gains 10 life.
Whenever you cast an instant or sorcery spell, put a verse counter on Aria of Flame, then it deals damage equal to the number of verse counters on it to target player or planeswalker.
{X}{R}{W}
Aurelia's Fury
Instant
Aurelia's Fury deals X damage divided as you choose among any number of targets. Tap each creature dealt damage this way. Players dealt damage this way can't cast noncreature spells this turn.
{8}{R}
Blasphemous Act
Sorcery
This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.
{3}
Champion's Helm
Artifact - Equipment
Equipped creature gets +2/+2.
As long as equipped creature is legendary, it has hexproof. (It can't be the target of spells or abilities your opponents control.)
Equip {1}
{3}{R}{R}
Chandra's Ignition
Sorcery
Target creature you control deals damage equal to its power to each other creature and each opponent.
{2}{R}
Chaos Warp
Instant
The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.
{1}{R}{W}
Hero of the Nyxborn
Enchantment Creature - Human Soldier
When Hero of the Nyxborn enters the battlefield, create a 1/1 white Human Soldier creature token.
Whenever you cast a spell that targets Hero of the Nyxborn, creatures you control get +1/+0 until end of turn.
2 /
2
{0}
Lotus Petal
Artifact
{T}, Sacrifice Lotus Petal: Add one mana of any color.
{R}
Renegade Tactics
Sorcery
Target creature can't block this turn.
Draw a card.
{R}
Rile
Sorcery
Rile deals 1 damage to target creature you control. That creature gains trample until end of turn.
Draw a card.
{2}{R/W}
Scourge of the Nobilis
Enchantment - Aura
Enchant creature
As long as enchanted creature is red, it gets +1/+1 and has "{R/W}: This creature gets +1/+0 until end of turn."
As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)