Greater Aboroth

Suspend 9-{g} (Rather than cast this card from
your hand, you may pay {g} and exile it with nine 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. It has haste.)
At the beginning of your upkeep, if Greater Aboroth is suspended, you may remove all time counters from it. If you do, Greater Aboroth enters the battlefield with that many -1/-1 counters on it.