Wormfang Manta + Scroll of Fate + Roaring Primadox

Wormfang Manta

Scroll of Fate

Roaring Primadox

How it works

1. At the beginning of your upkeep, Roaring Primadox triggers, returning 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 5 to turn Wormfang Manta face up.
5. Repeat each turn.

This delightful setup relies on constantly cycling Wormfang Manta in and out of play to chain endless extra turns, bypassing its dangerous drawback entirely. While Wormfang Manta normally makes you skip your next turn when it enters, returning it to your hand with Roaring Primadox triggers its leave-the-battlefield ability to immediately grant you an extra turn instead. To get it back onto the battlefield without paying its full mana cost, you use Scroll of Fate to manifest it face down from your hand, leaving you free to turn Wormfang Manta face up whenever you have the mana to spare.