Hullbreaker Horror + Mana Vault

단계

1. Activate Mana Vault by tapping it, adding {C}{C}{C}.
2. Cast the permanent that can be cast using {C}{C} from your hand by paying its mana cost.
3. Hullbreaker Horror triggers, returning Mana Vault from the battlefield to your hand.
4. Cast Mana Vault by paying {1}.
5. Hullbreaker Horror triggers, returning the permanent cast in step 2 from the battlefield to your hand.
6. Repeat.
7. If the permanent can be cast using {C} or less, this combo nets infinite colorless mana.