Soul Clouding

When a creature an opponent controls is targeted by a spell pr ability, gain control of it and it becomes an eldrazi in addtiion to its other types with the effects "Sacrifice this creature, add {1}" and "When this creature dies, exile it. It may be cast for its converted mana cost minus {2}"
If you control 5 eldrazi creatures owned by your opponents, transform Soul Clouding.
All opponents play with their hands revealed.