Flying {T}: Add one mana of any color.

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

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

When Chittering Witch enters the battlefield, create a number of 1/1 black Rat creature tokens equal to the number of opponents you have. {1}{B}, Sacrifice a creature: Target creature gets -2/-2 until end of turn.

If a creature dying causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time. {B/P}{B/P}, Exile three creature cards from your graveyard: Put an indestructible counter on Drivnod, Carnage Dominus. ({B/P} can be paid with either {B} or 2 life.)

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

Whenever another creature you control dies, draw a card if it was attacking. Otherwise, Garna, Bloodfist of Keld deals 1 damage to each opponent.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) {T}: Add {B}, {R}, or {G}.

Whenever another Rat enters the battlefield under your control, exile up to one target card from an opponent's graveyard. At the beginning of combat on your turn, create a 1/1 black Rat creature token with "This creature can't block."

At the beginning of your end step, create a Treasure token for each creature that died this turn. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Flying Whenever you create or sacrifice a token, each opponent loses 1 life.

Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1/+1 counters on it.) At the beginning of your upkeep, create a 1/1 green Saproling creature token for each +1/+1 counter on Mycoloth.

Flash When Orcish Bowmasters enters the battlefield and whenever an opponent draws a card except the first one they draw in each of their draw steps, Orcish Bowmasters deals 1 damage to any target. Then amass Orcs 1.

Indestructible As long as your devotion to red is less than five, Purphoros isn't a creature. Whenever another creature enters the battlefield under your control, Purphoros deals 2 damage to each opponent. {2}{R}: Creatures you control get +1/+0 until end of turn.

{1}{B}: Return Reassembling Skeleton from your graveyard to the battlefield tapped.

When Siege-Gang Commander enters the battlefield, create three 1/1 red Goblin creature tokens. {1}{R}, Sacrifice a Goblin: Siege-Gang Commander deals 2 damage to any target.

Whenever a Saproling you control dies, Slimefoot, the Stowaway deals 1 damage to each opponent and you gain 1 life. {4}: Create a 1/1 green Saproling creature token.

When Stitcher's Supplier enters the battlefield or dies, mill three cards.

Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad, the Grim deals 1 damage to each opponent. {1}{B}: Each player mills a card. (They each put the top card of their library into their graveyard.)

Trample The Mycotyrant's power and toughness are each equal to the number of creatures you control that are Fungi and/or Saprolings. At the beginning of your end step, create X 1/1 black Fungus creature tokens with "This creature can't block," where X is the number of times you descended this turn. (You descend each time a permanent card is put into your graveyard from anywhere.)

Whenever Totentanz, Swarm Piper or another nontoken creature you control dies, create a 1/1 black Rat creature token with "This creature can't block." {1}{B}: Target attacking Rat you control gains deathtouch 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.)

Protection from Humans Pay 1 life, Sacrifice another creature: Put a -1/-1 counter on up to one target creature and draw a card. {B}{B}, Discard a card: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Sacrifice a creature: Goblin Bombardment deals 1 damage to any target.

Whenever a nontoken creature you control dies, create a 1/1 green Saproling creature token.

Search your library for a card, put that card into your graveyard, then shuffle.