Molten Echoes + Wanderwine Prophets

Prerequisites

"Wizard" or "Merfolk" chosen with Molten Echoes. An opponent cannot block your creature.

Steps

1. Cast Wanderwine Prophets by paying {4}{U}{U}.
2. Wanderwine Prophets's Champion a Merfolk ability and Molten Echoes's ability trigger.
3. Resolve Molten Echoes's ability, creating a token copy of Wanderwine Prophets with haste.
4. The token Wanderwine Prophets triggers, exiling the original Wanderwine Prophets until the token leaves the battlefield.
5. Resolve the remaining Champion a Merfolk ability, declining to exile anything.
6. Deal combat damage to an opponent with the token Wanderwine Prophets.
7. The token Wanderwine Prophets triggers, allowing you to sacrifice it to take an extra turn.
8. The token's Champion a Merfolk ability returns the original Wanderwine Prophets from exile to the battlefield.
9. Repeat steps 2 through 5 one additional time.
10. At the beginning of your end step, exile the new token copy of Wanderwine Prophets.
11. The token's Champion a Merfolk ability returns the original Wanderwine Prophets from exile to the battlefield.
12. Repeat steps 2 through 5 one additional time.
13. Repeat from step 6 each turn.