Legions

{T}: Add X mana of any one color, where X is the number of Elves on the battlefield.

Haste {T}: Turn target face-down creature you control face up. At the beginning of the next end step, sacrifice it.

Whenever a Sliver deals combat damage to a player, its controller may create a 1/1 colorless Sliver creature token.

Amplify 1 (As this creature enters the battlefield, put a +1/+1 counter on it for each Zombie card you reveal in your hand.) Whenever Embalmed Braw...

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...

{T}: Goblin Dynamo deals 1 damage to any target. {X}{R}, {T}, Sacrifice Goblin Dynamo: It deals X damage to any target.

Whenever Goblin Assassin or another Goblin enters the battlefield, each player flips a coin. Each player whose coin comes up tails sacrifices a cre...

At the beginning of your upkeep, you draw X cards and you lose X life, where X is the number of Zombies you control.

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...

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

Noncreature spells cost {1} more to cast.

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

Whenever Noxious Ghoul or another Zombie enters the battlefield, all non-Zombie creatures get -1/-1 until end of turn.

Cycling {3} ({3}, Discard this card: Draw a card.)

Whenever a Sliver deals damage, its controller gains that much life.

All Slivers have "{T}: Target Sliver creature gets +X/+0 until end of turn, where X is the number of Slivers on the battlefield."

Whenever a Sliver deals combat damage to a creature, destroy that creature. It can't be regenerated.

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

{1}{U}: Change Riptide Mangler's base power to target creature's power. (This effect lasts indefinitely.)

All Slivers have "{1}: This permanent becomes the creature type of your choice in addition to its other types until end of turn."

Untap all permanents you control during each other player's untap step.

{B}, Pay 1 life: Add one mana of any color.

At the beginning of each opponent's upkeep, if that player has two or fewer cards in hand, Lavaborn Muse deals 3 damage to that player.

Mistform Ultimus is every creature type (even if this card isn't on the battlefield).