Eldrazi Sliver Simulacrum

Devoid
Slivers creatures you control gain Annihilator X
(X may be 0). Eldrazi Sliver Simulacrum's
toughness is one greater than thrice X.
{c}{c}{w}, {t}: Gain control of target creature with
converted mana cost less than or equal to Eldrazi
Sliver Simulacrum's converted mana cost when it
was cast, then exile that creature at the end of
your next turn.