Flying Each creature you control is a Vampire in addition to its other creature types and has "Whenever this creature deals damage to a creature, put a +1/+1 counter on this creature."
Each player discards a card, then loses 1 life, then sacrifices an artifact, a creature, an enchantment, a land, a planeswalker, and a tribal permanent, then exiles a card from their graveyard, then puts the top card of their library into their graveyard, then removes a counter from a permanent they control, then gets a poison counter.
You control target player during that player’s next turn. Exile Worst Fears. (You see all cards that player could see and make all decisions for the player.)
Flying Whenever a creature dealt damage by Soul Collector this turn is put into a graveyard, return that card to play under your control. Morph BBB (You may play this face down as a 2/2 creature for 3. Turn it face up any time for its morph cost.)
Deathtouch At the beginning of your end step, if you gained life this turn, each opponent sacrifices a creature and you return up to one target creature card from your graveyard to your hand.
At the beginning of your upkeep, the Ring tempts you. Whenever you choose a creature as your Ring-bearer, you may pay 2 life. If you do, draw a card.
Roll two d10 and choose one result. Return a creature card from your graveyard to the battlefield with a number of +1/+1 counters on it equal to that result. Then each opponent loses X life and you gain X life, where X is the other result.
Champion a Goblin (When this comes into play, sacrifice it unless you remove another Goblin you control from the game. When this leaves play, that card returns to play.) Whenever a Goblin you control deals combat damage to a player, you may put a 1/1 black Goblin Rogue creature token into play.
Spree (Choose one or more additional costs.) + 1 — Target opponent sacrifices half the creatures they control, rounded up. + 2 — Target opponent discards half the cards in their hand, rounded up. + 2 — Target opponent loses half their life, rounded up.
T: Add 1 to your mana pool. 2WB, T: Creatures you control gain deathtouch and lifelink until end of turn.
Menace, lifelink Whenever a Knight you control deals combat damage to a player, put a +1/+1 counter on that creature and create a Blood token. (It's an artifact with "1, T, Discard a card, Sacrifice this artifact: Draw a card.")
Flying Whenever Butcher of Malakir or another creature you control dies, each opponent sacrifices a creature.
Whenever another Zombie you control enters, put a +1/+1 counter on Champion of the Perished.
At the beginning of each opponent's upkeep, you manifest the top card of that player's library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up for its mana cost if it's a creature card.) Whenever a creature you control but don't own dies, its owner loses 2 life and you gain 2 life.