Stolen Identity

Create a token that's a copy of target artifact or creature.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Voidwalk

Exile target creature. Return it to the battlefield under its owner's control at the beginning of the next end step.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Zhur-Taa Swine

Bloodrush — {1}{R}{G}, Discard Zhur-Taa Swine: Target attacking creature gets +5/+4 until end of turn.

Batterhorn

When Batterhorn enters, you may destroy target artifact.

Riot Piker

First strike
Riot Piker attacks each combat if able.

Tear

Destroy target enchantment.
Fuse (You may cast one or both halves of this card from your hand.)

Wear

Destroy target artifact.
Fuse (You may cast one or both halves of this card from your hand.)

Wear // Tear

Electrickery

Electrickery deals 1 damage to target creature you don't control.
Overload {1}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Dutiful Thrull

Leyline Phantom

When Leyline Phantom deals combat damage, return it to its owner's hand. (Return it only if it survived combat.)

Psychic Strike

Counter target spell. Its controller mills two cards.

Dramatic Rescue

Return target creature to its owner's hand. You gain 2 life.

Boros Guildgate

This land enters tapped.
{T}: Add {R} or {W}.

Aerial Predation

Destroy target creature with flying. You gain 2 life.

Chronic Flooding

Enchant land
Whenever enchanted land becomes tapped, its controller mills three cards.

Fathom Mage

Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Whenever a +1/+1 counter is put on Fathom Mage, you may draw a card.

Biovisionary

At the beginning of the end step, if you control four or more creatures named Biovisionary, you win the game.

Armored Wolf-Rider

Furious Resistance

Target blocking creature gets +3/+0 and gains first strike until end of turn.

Avenging Arrow

Destroy target creature that dealt damage this turn.

Opal Lake Gatekeepers

When Opal Lake Gatekeepers enters, if you control two or more Gates, you may draw a card.

Oak Street Innkeeper

During turns other than yours, tapped creatures you control have hexproof.

Hold the Gates

Creatures you control get +0/+1 for each Gate you control and have vigilance.

Cancel

Aetherize

Return all attacking creatures to their owner's hand.

Crosstown Courier

Whenever Crosstown Courier deals combat damage to a player, that player mills that many cards.

Foundry Street Denizen

Whenever another red creature you control enters, Foundry Street Denizen gets +1/+0 until end of turn.

Eyes in the Skies

Create a 1/1 white Bird creature token with flying, then populate. (Create a token that's a copy of a creature token you control.)

Goblin Rally

Create four 1/1 red Goblin creature tokens.

Trestle Troll

Defender
Reach (This creature can block creatures with flying.)
{1}{B}{G}: Regenerate Trestle Troll.

Hydroform

Target land becomes a 3/3 Elemental creature with flying until end of turn. It's still a land.

Ember Beast

Firefist Striker

Battalion — Whenever Firefist Striker and at least two other creatures attack, target creature can't block this turn.

Rubbleback Rhino

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Totally Lost

Put target nonland permanent on top of its owner's library.

Lyev Skyknight

Flying
When Lyev Skyknight enters, detain target nonland permanent an opponent controls. (Until your next turn, that permanent can't attack or block and its activated abilities can't be activated.)

Riot Control

You gain 1 life for each creature your opponents control. Prevent all damage that would be dealt to you this turn.

Guildscorn Ward

Enchant creature
Enchanted creature has protection from multicolored.

Urban Evolution

Draw three cards. You may play an additional land this turn.

Chemister's Trick

Target creature you don't control gets -2/-0 until end of turn and attacks this turn if able.
Overload {3}{U}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")