Venom

Enchant creature
Whenever enchanted creature blocks or becomes blocked by a non-Wall creature, destroy the other creature at end of combat.

Whippoorwill

{G}{G}, {T}: Target creature can't be regenerated this turn. Damage that would be dealt to that creature this turn can't be prevented or dealt instead to another permanent or player. When the creature dies this turn, exile the creature.

Wormwood Treefolk

{G}{G}: This creature gains forestwalk until end of turn and deals 2 damage to you. (It can't be blocked as long as defending player controls a Forest.)
{B}{B}: This creature gains swampwalk until end of turn and deals 2 damage to you. (It can't be blocked as long as defending player controls a Swamp.)

Marsh Goblins

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Scarwood Goblins

Dark Heart of the Wood

Barl's Cage

{3}: Target creature doesn't untap during its controller's next untap step.

Bone Flute

{2}, {T}: All creatures get -1/-0 until end of turn.

Book of Rass

Coal Golem

{3}, Sacrifice this creature: Add {R}{R}{R}.

The Dark