Deathtouch
When this creature enters, you may pay any number of times. When you pay this cost one or more times, put that many +1/+1 counters on this creature, then create twice that many 2/2 black Zombie creature tokens with decayed. (A creature with decayed can't block. When it attacks, sacrifice it at end of combat.)

At the beginning of your end step, if you discarded a card this turn, transform this creature.

: Add one mana of any color.
: Add two mana of any one color. Spend this mana only to cast spells from your graveyard.
, , Exile this creature: Return target card with flashback you own from exile to your hand.

Exile target Spirit, creature with disturb, or enchantment.

When this creature dies, create a 2/2 black Zombie creature token.

Whenever you cast an enchantment spell, you gain 2 life.

As long as you control another Wolf or Werewolf, this creature gets +1/+0 and has trample.

Defender
Whenever you cast an instant or sorcery spell, put a number of ember counters on this creature equal to the amount of mana spent to cast that spell. Then if this creature has seven or more ember counters on it, remove them and transform this creature.

Target creature gets +2/+2 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Target creature gets +3/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

At the beginning of your end step, if you control no creatures with decayed, create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)

At the beginning of your end step, if you gained life this turn, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this token: Draw a card.")
Sacrifice two Blood tokens: Transform this creature. Activate only as a sorcery.

Return target nonland permanent to its owner's hand. If you controlled that permanent, draw a card.

Exploit (When this creature enters, you may sacrifice a creature.)
Whenever a creature you control exploits a nontoken creature, create a 2/2 black Zombie creature token.

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

As an additional cost to cast this spell, sacrifice a nonland permanent.
Exile target nonland permanent.
Flashback (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)

Cleave (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Lantern Flare deals X damage to target creature or planeswalker and you gain X life. [X is the number of creatures you control.]

: Add . Spend this mana only to pay a disturb cost or cast an instant or sorcery spell.

Coven — At the beginning of combat on your turn, if you control three or more creatures with different powers, this creature can't be blocked by creatures with power 2 or less this turn.

Whenever you gain life, put a +1/+1 counter on this creature.
As long as this creature has four or more +1/+1 counters on it, it has flying and vigilance.
As long as this creature has ten or more +1/+1 counters on it, it has indestructible.

Destroy target creature. You lose 2 life.

Cleave (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Parasitic Grasp deals 3 damage to target [Human] creature. You gain 3 life.

Cleave (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Return target [Wolf or Werewolf] creature to its owner's hand.
Draw a card.

: This creature gains deathtouch until end of turn.

This creature enters with X +1/+1 counters on it.
If damage would be dealt to this creature while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from it. When one or more counters are removed from this creature this way, it deals that much damage to any target.

When The Meathook Massacre enters, each creature gets -X/-X until end of turn.
Whenever a creature you control dies, each opponent loses 1 life.
Whenever a creature an opponent controls dies, you gain 1 life.

At the beginning of combat on your turn, if you control another Wolf or Werewolf, put a +1/+1 counter on this creature.
When this creature dies, you gain life equal to its power.

Enchant creature
Enchanted creature has "Whenever another creature dies, put a +1/+1 counter on this creature."
When enchanted creature dies, look at the top X cards of your library, where X is its power. Put one of those cards into your hand and the rest on the bottom of your library in a random order.

Until end of turn, target creature becomes a blue Serpent with base power and toughness 5/5.

Whenever one or more nontoken creatures die, create a 2/2 black Zombie creature token with decayed. This ability triggers only once each turn. (A creature with decayed can't block. When it attacks, sacrifice it at end of combat.)

Whenever a creature or enchantment you control enters this turn, draw a card.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Create a 3/1 black and red Vampire creature token with trample, lifelink, and haste. Sacrifice it at the beginning of the next end step.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Equipped creature gets +2/+0. It gets an additional +0/+2 and has first strike as long as an Equipment named Groom's Finery is attached to a creature you control.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Destroy target creature or planeswalker. Its controller investigates. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")

It becomes night. Until end of turn, target creature gets +1/+0 and gains trample and "Whenever this creature deals combat damage to a player, draw a card."
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

This creature has first strike as long as it's attacking.
When this creature dies, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this token: Draw a card.")