Haste Whenever another creature you control dies, it deals damage equal to its power to target player or planeswalker.

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.) {2}{B}{R}, Sacrifice Hellhole Flailer: Hellhole Flailer deals damage equal to its power to target player or planeswalker.

Creatures you control with +1/+1 counters on them can't be blocked.

Flying {B}, Pay 2 life: Put a +1/+1 counter on Bloodtracker. When Bloodtracker leaves the battlefield, draw a card for each +1/+1 counter on it.

Pay 3 life: Put a +1/+1 counter on Souldrinker.

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.) Pay 3 life: Add {R}.

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.) Whenever Flayer of the Hatebound or another creature enters the battlefield from your graveyard, that creature deals damage equal to its power to any target.

Sacrifice another creature: Blood Bairn gets +2/+2 until end of turn.

Sacrifice a creature: Put a +1/+1 counter on Bloodflow Connoisseur.

Sacrifice a creature: Bloodthrone Vampire gets +2/+2 until end of turn.

Carrion Feeder can't block. Sacrifice a creature: Put a +1/+1 counter on Carrion Feeder.

Flying, haste Sacrifice a creature: Falkenrath Aristocrat gains indestructible until end of turn. If the sacrificed creature was a Human, put a +1/+1 counter on Falkenrath Aristocrat.

Sacrifice a creature: Falkenrath Torturer gains flying until end of turn. If the sacrificed creature was a Human, put a +1/+1 counter on Falkenrath Torturer.

Sacrifice a creature: Nantuko Husk gets +2/+2 until end of turn.

Sacrifice a creature: Phyrexian Ghoul gets +2/+2 until end of turn.

Sacrifice a creature: Target player discards two cards. Activate only as a sorcery.

Sacrifice a creature: Put a charge counter on Spawning Pit. {1}, Remove two charge counters from Spawning Pit: Create a 2/2 colorless Spawn artifact creature token.

{T}, Sacrifice a creature: Destroy target nonblack creature.

Sacrifice a creature: Vampire Aristocrat gets +2/+2 until end of turn.

Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

({R/P} can be paid with either {R} or 2 life.) Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.)

{3}{R}: Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. Activate only as a sorcery.

Flying When Conquering Manticore enters the battlefield, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.

Choose one — • Until end of turn, you gain control of target creature and it gains haste. • Sacrifice a creature. Grab the Reins deals damage equal to that creature's power to any target. Entwine {2}{R} (Choose both if you pay the entwine cost.)

Gain control of target creature until end of turn. Put a +1/+1 counter on it and untap it. That creature gains haste until end of turn. (It can attack and {T} this turn.)

For each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn.

Haste When Molten Primordial enters the battlefield, for each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn.

Untap target creature an opponent controls and gain control of it until end of turn. That creature gains haste until end of turn. When you lose control of the creature, tap it.

Gain control of target creature. Untap that creature. It gains haste until end of turn. Sacrifice it at the beginning of the next end step.

Gain control of target creature until end of turn. Untap that creature. Until end of turn, it gets +2/+0 and gains haste.