Gatecrash

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...

Creature tokens get -1/-1.

{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.)

Flying Each creature you control with a +1/+1 counter on it has flying.

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.

{1}{W}, {T}: You gain 2 life.

Prevent all damage that would be dealt to target creature this turn.

Equipped creature gets +1/+0 and can't be blocked by creatures with flying. Equip {3} ({3}: Attach to target creature you control. Equip only as a ...

{1}, {T}: Razortip Whip deals 1 damage to target opponent or planeswalker.

Equipped creature gets +1/+2. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Prevent all combat damage that would be dealt to Armored Transport by creatures blocking it.

Battalion — Whenever Nav Squad Commandos and at least two other creatures attack, Nav Squad Commandos gets +1/+1 until end of turn. Untap it.

Deathcult Rogue can't be blocked except by Rogues.