Catacomb Slug

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.

Gold-Forged Sentinel

Sengir Vampire

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

Deadbridge Shaman

When Deadbridge Shaman dies, target opponent discards a card.

Rabid Bloodsucker

Flying (This creature can't be blocked except by creatures with flying or reach.)
When Rabid Bloodsucker enters the battlefield, each player loses 2 life.

Mind Rot

Infernal Scarring

Enchant creature
Enchanted creature gets +2/+0 and has "When this creature dies, draw a card."

Swamp

Malakir Cullblade

Whenever a creature an opponent controls dies, put a +1/+1 counter on Malakir Cullblade.

Cruel Revival

Destroy target non-Zombie creature. It can't be regenerated. Return up to one target Zombie card from your graveyard to your hand.

Eyeblight Assassin

When Eyeblight Assassin enters the battlefield, target creature an opponent controls gets -1/-1 until end of turn.

Flesh to Dust

Destroy target creature. It can't be regenerated.

Shambling Ghoul

Shambling Ghoul enters the battlefield tapped.

Weight of the Underworld

Enchant creature
Enchanted creature gets -3/-2.

Reave Soul

Destroy target creature with power 3 or less.