Untamed Hunger

Enchant creature
Enchanted creature gets +2/+1 and has menace. (It can't be blocked except by two or more creatures.)

Mind Rot

Rottenheart Ghoul

When this creature dies, target player discards a card.

Swamp

Tar Snare

Target creature gets -3/-2 until end of turn.

Zulaport Cutthroat

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

Vampire Envoy

Flying
Whenever this creature becomes tapped, you gain 1 life.

Sengir Vampire

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature.

Nightmare

Flying (This creature can't be blocked except by creatures with flying or reach.)
Nightmare's power and toughness are each equal to the number of Swamps you control.

Dutiful Return

Return up to two target creature cards from your graveyard to your hand.

Blighted Fen

{T}: Add {C}.
{4}{B}, {T}, Sacrifice this land: Target opponent sacrifices a creature of their choice.

Bone Splinters

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

Walking Corpse

Dead Weight

Enchant creature
Enchanted creature gets -2/-2.

Vampire Noble

Hagra Sharpshooter

{4}{B}: Target creature gets -1/-1 until end of turn.

Demon's Grasp

Target creature gets -5/-5 until end of turn.