Obscure Monstrosity

Vanishing 20
Whenever another permanent enters or leaves the battlefield or a player casts an instant or sorcery spell, remove a time counter from Obscure Monstrosity.
Suspend 8 - {3}{u}{u}
If Obscure Monstrosity would die, exile it instead with fifteen time counters on it.
Curiosity killed the cat. Except, it's curiosity,
and you're the cat.