Master Key Combo

Equipped creature gains +2/+0 and reach. If the creature is a Survivor, it also gains +0/+2 and has
"{x}, {t}: Destroy target nonenchantment, nonland permanent with convert mana cost X. Ignore
mana cost if target is a Vampire or Zombie."
Equip {4}
With armor piercing incendiary rounds and UV slugs,
you would be hard pressed to find anything better for
rotskulls and neckbiters.