Ultamacia, Time Witch

Commander suspend X {w}{u}{b}{x} X can't be
zero. Whenever you remove a time counter from
this card, add a T counter to each opponent.
{1}{w/u}{w/u} Until your next turn, each first spell
target opponent casts each turn is instead
suspended with X time counters on it where
X is equal to the number of T counters that
opponent controls. Then, if an opponent has five
or more T counters, exile this card and have this
card enter the battlefield transformed.