Magic the Gathering X: Deal X damage to target thread.

[Fable Wright]

Nah Dismember is the better card. I don't think anyone's going to argue that a 1 mana -5/-5 instant speed removal is worse than 1b destroy target non artifact

Depends on a variety of circumstances. Each has their own ups and downs.

Unless you're playing monoblack against a Mirran Crusader, in which case neither of them does anything.