Zhenpher, the Prophet

You may play cards exiled with Zhenpher and
spend mana as if it were mana of any color to
cast spells from among those cards.
Whenever another eldrazi you control deals
combat damage to a player, exile the top card of
that player s library. Create a 1/1 eldrazi scion creature token with sacrifice this creature: add {c}.
{5}{c}{c}{c}, sacrifice 8 eldrazis: gain control of
each opponent for their next turn. After that
turn, that player takes an extra turn.