Whenever you sacrifice an artifact or creature, put a +1/+1 counter on Ravenous Squirrel. {1}{B}{G}, Sacrifice an artifact or creature: You gain 1 life and draw a card.

Persist (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.)

As an additional cost to cast this spell, sacrifice a creature or discard a card. Destroy target creature or planeswalker.

As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

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

As an additional cost to cast this spell, sacrifice a creature. Add {B}{B}{B}{B}.

Sacrifice a creature: Add {C}{C}.

{T}, Sacrifice a creature: Blasting Station deals 1 damage to any target. Whenever a creature enters the battlefield, you may untap Blasting Station.

Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.

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.

As an additional cost to cast this spell, sacrifice a creature. Destroy target creature.

Whenever Cruel Celebrant or another creature or planeswalker you control dies, each opponent loses 1 life and you gain 1 life.

Enchant creature you control Enchanted creature gets +3/+3. At the beginning of your upkeep, sacrifice a creature.

Flying Sacrifice a creature: Devouring Swarm gets +1/+1 until end of turn.

Deathtouch Whenever another creature enters the battlefield under your control, you gain 1 life. Whenever another creature you control dies, each opponent loses 1 life.

Whenever a creature enters the battlefield under your control this turn, put a +1/+1 counter on it and it gains haste until end of turn. Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

({T}: Add {G}.)

Whenever another creature enters the battlefield under your control, put a +1/+1 counter on that creature.

As an additional cost to cast this spell, sacrifice a creature. Add {R}{R}{R}.

Whenever another green creature enters the battlefield under your control, put a +1/+1 counter on target creature.

When Kitchen Finks enters the battlefield, you gain 2 life. Persist (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.)

You can't get poison counters. Creatures you control can't have -1/-1 counters put on them. Creatures your opponents control lose infect.

If you would get one or more poison counters, instead you get one poison counter and you can't get additional poison counters this turn. Exile Melira, the Living Cure: Choose another target creature or artifact. When it's put into a graveyard this turn, return that card to the battlefield under its owner's control.

If you control a Swamp, you may sacrifice a creature rather than pay this spell's mana cost. Each player exiles two cards from their hand.

Exile target creature you control, then return it to the battlefield under its owner's control. Flashback {3}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

This spell has flash as long as you control a permanent with flash. As an additional cost to cast this spell, sacrifice a creature. Destroy target creature.

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

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

({T}: Add {W}.)

Persist (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.)

Flying Whenever another creature with power 2 or less enters the battlefield under your control, put two +1/+1 counters on that creature.

As an additional cost to cast this spell, sacrifice a creature. You gain life equal to the sacrificed creature's toughness. Destroy target creature an opponent controls.

Put a +1/+1 counter on target creature you control. It gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

As an additional cost to cast this spell, sacrifice a creature. Target opponent discards two cards.

Whenever a creature enters the battlefield under your control, draw a card if its power is 3 or greater. Otherwise, put two +1/+1 counters on it.

If one or more -1/-1 counters would be put on a creature you control, that many -1/-1 counters minus one are put on it instead.