Astral Prisoner

Cling (Counters are kept on this when it moves between zones as long as it is face-up.)
Suspend 4 - {g/w}{w/u}{u/b}{b/g} (Rather than cast this card from your hand, pay {g/w}{w/u}{u/b}{b/g} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)
When it is suspended, move all counters from all cards to Astral