Tidespout Tyrant + Grim Monolith

Prerequisites

• You control a nontoken permanent that can be cast using .

Steps

1. 1Cast Grim Monolith by paying its mana cost.
2. 2Tidespout Tyrant triggers, returning a nontoken permanent that can be cast using from the battlefield to your hand.
3. 3Activate Grim Monolith by tapping it, adding .
4. 4Cast the nontoken permanent returned in step 2 by paying its mana cost.
5. 5Tidespout Tyrant triggers, returning Grim Monolith from the battlefield to your hand.
6. 6Repeat.

Effects

• Infinite colorless mana
• Infinite storm count