Tidespout Tyrant, Codex Shredder, and Mana Crypt

Prerequisites

• Tidespout Tyrant on the battlefield
• Codex Shredder in hand
• Mana Crypt on the battlefield

Steps

1. Activate Mana Crypt by tapping it, adding
2. Cast Codex Shredder by paying
3. Tidespout Tyrant triggers, returning Mana Crypt from the battlefield to your hand
4. Activate Codex Shredder by tapping it, causing target player to mill one card
5. Cast Mana Crypt by paying
6. Tidespout Tyrant triggers, returning Codex Shredder from the battlefield to your hand
7. Repeat

Results

• Infinite colorless mana
• Infinite mill
• Infinite self-mill
• Infinite storm count