Untamed Hunger

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

Tattered Mummy

When this creature dies, each opponent loses 2 life.

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.

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.

Gravedigger

When this creature enters, you may return target creature card from your graveyard to your hand.

Swamp

Raise Dead

Return target creature card from your graveyard to your hand.

Essence Extraction

Essence Extraction deals 3 damage to target creature and you gain 3 life.

Bloodhunter Bat

Flying
When this creature enters, target player loses 2 life and you gain 2 life.