Go for the Throat
{1}{B}
Instant
Destroy target nonartifact creature.
Grisly Spectacle
{2}{B}{B}
Instant
Destroy target nonartifact creature. Its controller mills cards equal to that creature's power.
Viscerid Drone
{1}{U}
Creature -- Homarid Drone
1/2
{T}, Sacrifice a creature and a Swamp: Destroy target nonartifact creature. It can't be regenerated.
{T}, Sacrifice a creature and a snow Swamp: Destroy target creature. It can't be regenerated.