Vault 111

Vault 111 is Indestructible.
Vault 111 enters the battlefield tapped.
Whenever you cast a creature spell, you may exile that creature with 2 suspend counters on it. At the beginning of your upkeep, remove a suspend counter. When the last one is removed, that creature enters the battlefield with 2 +1/+1 counters on it.
{t}: Add {w}{u} to your mana pool.