Skeletal Colossus

Indestructible, Vigilance
When Skeletal Colossus attacks, put a Blade charge on Skeletal Colossus.
Sacrifice a undead creature under your control, put a Skull charge on Skeletal Colossus.
Remove a Blade charge from Skeletal Colossus, destroy target permanent.
Remove a Skull charge from Skeletal Colossus, target creature gains deathtouch.