Mind Stone

Indestructible. At the beginning of your upkeep,
put a charge counter on Mind Stone.
{t}: Target creature doesn't untap during its controller's next untap step.
{t}, Remove two charge counters from Mind
Stone: Gain control of target creature until end
of turn. Untap that creature. It gains haste.
{t}, Remove four charge counters from Mind
Stone: You control target player during that
player's next turn.