Wormfang Manta, Scroll of Fate, and Blood Clock

Prerequisites

• All permanents on the battlefield
• available each turn

Steps

1. At the beginning of your upkeep, Blood Clock triggers, allowing you to return Wormfang Manta from the battlefield to your hand
2. Wormfang Manta's LTB ability triggers, creating an extra turn after this one
3. Activate Scroll of Fate by tapping it, manifesting Wormfang Manta from your hand
4. Pay to turn Wormfang Manta face up
5. Repeat each turn

Results

• Infinite turns