Gatecrash

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1...

Battalion — Whenever Warmind Infantry and at least two other creatures attack, Warmind Infantry gets +2/+0 until end of turn.

Defender Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature,...

Whenever Slate Street Ruffian becomes blocked, defending player discards a card.

Enchant creature Enchanted creature gets +3/+0 and has menace.

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

Battalion — Whenever Daring Skyjek and at least two other creatures attack, Daring Skyjek gains flying until end of turn.

Ember Beast can't attack or block alone.

Battalion — Whenever Bomber Corps and at least two other creatures attack, Bomber Corps deals 1 damage to any target.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.)

Whenever another white creature enters the battlefield under your control, tap target creature an opponent controls.

Target opponent loses 3 life. Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat dam...

Return target creature card from your graveyard to your hand. Cipher (Then you may exile this spell card encoded on a creature you control. Wheneve...

{U}: Horror of the Dim gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Target player sacrifices a creature, then gains life equal to that creature's toughness.

Enchant creature Enchanted creature gets -X/-X, where X is the number of creature cards in its controller's graveyard.

Defender Sacrifice another creature: Corpse Blockade gains deathtouch until end of turn.

Enchant land Enchanted land has "{T}: Target creature gains flying until end of turn. Activate this ability only any time you could cast a sorcery."

Defender Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)

Whenever another blue creature enters the battlefield under your control, target player puts the top two cards of their library into their graveyard.

Flying {U}: Metropolis Sprite gets +1/-1 until end of turn.

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

Flying

{1}{G}: Frilled Oculus gets +2/+2 until end of turn. Activate this ability only once each turn.