Wormfang Manta + Scroll of Fate + Crystal Shard

Prerequisites

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Steps

1. 1Activate Scroll of Fate by tapping it, manifesting Wormfang Manta from your hand.
2. 2Pay to turn Wormfang Manta face up.
3. 3Activate Crystal Shard by paying and tapping it, returning Wormfang Manta from the battlefield to your hand.
4. 4Wormfang Manta's LTB ability triggers, creating an extra turn after this one.
5. 5Repeat each turn.

Effects

• Infinite turns
• Lock