Requires

Phantom Steed must be on the battlefield. Time Warp must be in hand. Shipwreck Dowser must be in exile (exiled by Phantom Steed). An opponent can not block Phantom Steed. Mana needed:

Steps

1. Cast Time Warp, taking an extra turn after this one.
2. Attack with Phantom Steed.
3. Phantom Steed triggers, creating a token copy of Shipwreck Dowser that is tapped and attacking.
4. Shipwreck Dowser enters, returning Time Warp from your graveyard to your hand.
5. Pass the turn.
6. Repeat.

Results