UB aggro-control

[conelead]

here's an interesting aggro-control deck I came up with today. Thoughts?

Land:
6x Swamp
4x Island
4x Watery Grave
4x Dreadship Reef
2x Underground River
2x Desert
2x Urza's Factory

Creatures:
4x Shadowmage Infiltrator
4x Dimir Cutpurse
3x Dark Confidant
2x Ravenous Rats

Counters:
4x Remand
3x Cancel
3x Spell Snare

Utility:
3x Extirpate
3x Sudden Death
4x Smallpox
3x Nightmare Void

[conelead]

Changes: -1 Nightmare Void, +1 Ravenous Rats, -2 Dreadship Reef, +2 Underground River