Pestilence

At the beginning of the end step, if no creatures are on the battlefield, sacrifice Pestilence.
{B}: Pestilence deals 1 damage to each creature and each player.

Dutiful Attendant

When Dutiful Attendant dies, return another target creature card from your graveyard to your hand.

Phyrexian Rager

When Phyrexian Rager enters, you draw a card and you lose 1 life.

Perilous Myr

When Perilous Myr dies, it deals 2 damage to any target.

Footlight Fiend

When Footlight Fiend dies, it deals 1 damage to any target.

Doomed Dissenter

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

Thorn of the Black Rose

Deathtouch
When Thorn of the Black Rose enters, you become the monarch.

Vampire Sovereign

Flying
When Vampire Sovereign enters, target opponent loses 3 life and you gain 3 life.

Festering Mummy

When Festering Mummy dies, you may put a -1/-1 counter on target creature.

Cast Down

Defile

Target creature gets -1/-1 until end of turn for each Swamp you control.

Guildsworn Prowler

Deathtouch
When Guildsworn Prowler dies, if it wasn't blocking, draw a card.

Bone Picker

This spell costs {3} less to cast if a creature died this turn.
Flying, deathtouch

Cuombajj Witches

{T}: Cuombajj Witches deals 1 damage to any target and 1 damage to any target of an opponent's choice.

Swamp

You Are Already Dead

Destroy target creature that was dealt damage this turn.
Draw a card.

Deadly Dispute

As an additional cost to cast this spell, sacrifice an artifact or creature.
Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")