Updated Omnitrix

Hexproof, indestructible

Creatures you own named Ben 10, Alien Force
have "{x}: Exile this creature. Then return it to
the battlefield as a copy of up to one Alien
permanent card you own in exile with mana
value X until your next turn, except its name
is still Ben 10, Alien Force. It gains haste."

{t}: Exile target Alien spell or permanent you
own.