, Exile this creature: Exile all creatures. At the beginning of the next end step, return those cards to the battlefield under their owners' control.

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

This creature doesn't untap during your untap step.
Whenever another creature enters, untap this creature.
: Tap target creature with mana value 3 or less.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, creatures of the creature type of your choice get +2/+2 and gain trample until end of turn.

: The next time a source of your choice would deal damage to you this turn, that damage is dealt to this creature instead.

: Change this creature's base power to target creature's power. (This effect lasts indefinitely.)

This creature can't block.
Whenever this creature deals combat damage, sacrifice a permanent.

Flying
, Tap two untapped Birds you control: Return target permanent to its owner's hand.

Noncreature spells cost more to cast.

Flash
When this creature enters, create a 2/2 green Bear creature token for each nontoken creature put into your graveyard from the battlefield this turn.

Amplify 1 (As this creature enters, put a +1/+1 counter on it for each Zombie card you reveal in your hand.)
At the beginning of your upkeep, if this card is in your graveyard, you may pay . If you do, return it to your hand.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, it gets +6/+6 and gains trample until end of turn. You skip your next turn.

Flying
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, you may put a creature card with a morph ability from your hand onto the battlefield face up. If you do, return this creature to its owner's hand.

Flying
Whenever this creature deals combat damage to a player, you may pay . If you do, that player reveals X cards from their hand and you choose one of them. That player discards that card.

This creature can't attack unless you control more creatures than defending player.
This creature can't block unless you control more creatures than attacking player.

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

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

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, all creatures get -X/-X until end of turn.

At the beginning of each player's upkeep, that player mills X cards, where X is the number of cards in their hand.

Flying
Creatures can't attack you unless their controller pays for each creature they control that's attacking you.

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

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

Haste
Sacrifice a Goblin: This creature gets +2/+2 and gains trample until end of turn.

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

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, creatures you control get +0/+2 until end of turn.

, : Draw a card for each Wizard you control.

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

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

Flying
When this creature dies, exile it, then return up to two target Bird and/or Cleric permanent cards from your graveyard to the battlefield.

When this creature dies, choose a creature type. Shuffle all creature cards of that type from your graveyard into your library.

Whenever a Sliver deals combat damage to a player, its controller may draw a card.

This creature gets +2/+2 for each face-down creature on the battlefield.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

This spell can't be countered.
This creature gets +3/+3 as long as no opponent controls a creature.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, you may exchange control of target creature you control and target creature an opponent controls.

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

Amplify 2 (As this creature enters, put two +1/+1 counters on it for each Beast card you reveal in your hand.)
Provoke (Whenever this creature attacks, you may have target creature defending player controls untap and block it if able.)