Legions

All Sliver creatures have provoke. (Whenever a Sliver attacks, its controller may have target creature defending player controls untap and block it...

Flash Any player may cast Sliver spells as though they had flash.

All Slivers have "{T}: Regenerate target Sliver."

Morph {1}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Tribal Forcemage is tu...

Whenever Vile Deacon attacks, it gets +X/+X until end of turn, where X is the number of Clerics on the battlefield.

Covert Operative can't be blocked.

All Sliver creatures get +0/+1.

{7}{R}: Flamewave Invoker deals 5 damage to target player or planeswalker.

{1}{W}: Until end of turn, target creature gains "This creature can't attack or block unless its controller pays {1} for each Cleric on the battlef...

{1}{B}, {T}, Sacrifice a creature: Search your library for a Zombie card and a Swamp card, reveal them, and put them into your hand. Then shuffle y...

Flying {1}: Mistform Wakecaster becomes the creature type of your choice until end of turn. {2}{U}{U}, {T}: Choose a creature type. Each creature y...

Cycling {2}{G}{G} ({2}{G}{G}, Discard this card: Draw a card.) When you cycle Gempalm Strider, Elf creatures get +2/+2 until end of turn.

As long as you control a Bird, Cloudreach Cavalry gets +2/+2 and has flying.

Whenever Skirk Drill Sergeant or another Goblin dies, you may pay {2}{R}. If you do, reveal the top card of your library. If it's a Goblin permanen...

Defender (This creature can't attack.) {3}: Turn Wall of Deceit face down. Morph {U} (You may cast this card face down as a 2/2 creature for {3}. T...

Morph {2}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Patron of the Wild is ...

{7}{U}: Glintwing Invoker gets +3/+3 and gains flying until end of turn.

Provoke (Whenever this creature attacks, you may have target creature defending player controls untap and block it if able.) {1}{W}: Prevent all co...

Goblin Goon can't attack unless you control more creatures than defending player. Goblin Goon can't block unless you control more creatures than at...

Whenever a Beast enters the battlefield, you may gain 3 life.

Morph {4}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Chromeshell Crab is tu...

{3}{W}, Exile Planar Guide: Exile all creatures. At the beginning of the next end step, return those cards to the battlefield under their owners' c...

Haste Provoke (Whenever this creature attacks, you may have target creature defending player controls untap and block it if able.)

Amplify 1 (As this creature enters the battlefield, put a +1/+1 counter on it for each Bird and/or Soldier card you reveal in your hand.) Flying