Voloskel, Ravager of Existence

Indestructible, Menace, Protection from Enchantments
Voloskel, Ravager of Existence can't be blocked.
When Voloskel, Ravager of Existence enters the battlefield each player sacrifices all colored permanents they control. Voloskel, Ravager of Existence gains Annihilator X, where X is the
number of all permanent that have been
sacrificed.