I'm making this deck for a friend and he loves darkness. So anyway...

Creatures / Costs:
4x Marrow Ooze -1-
4x Bloody Squintos -2-
4x Horrid Worm -3-
4x Poison Worms -4-
4x Bone Assassin -4-
2x Chaos Worm -5-
2x Ultracide Worm -6-

Spells:
4x Critical Blade -2-
4x Ghost Touch -2-
4x Death Smoke -4-
4x Terror Pit -6-

Suggestions?