Requires

Lumbering Battlement must be on the battlefield. Wispweaver Angel must be in exile (exiled by Lumbering Battlement). Deadeye Navigator must be on the battlefield. Deadeye Navigator is paired with Lumbering Battlement. Mana needed:

Steps

1. Activate Lumbering Battlement by paying , blinking itself.
2. Lumbering Battlement leaves the battlefield, causing Wispweaver Angel to return to the battlefield.
3. Wispweaver Angel and Lumbering Battlement enter the battlefield, triggering Wispweaver Angel's ability, Lumbering Battlement's ability, and Deadeye Navigator's ability twice.
4. Resolve both Deadeye Navigator triggers, choosing not to pair.
5. Resolve the Lumbering Battlement trigger, exiling Wispweaver Angel until Lumbering Battlement leaves the battlefield.
6. Resolve the Wispweaver Angel trigger, blinking Lumbering Battlement.
7. Repeat from step 2.

Results