Dryad Arbor + Deadeye Navigator + Lotus Cobra + Panharmonicon

Dryad Arbor

Deadeye Navigator

Lotus Cobra

Panharmonicon

How it works

1. Activate Dryad Arbor by paying 1, blinking it.
2. Dryad Arbor enters the battlefield, triggering Deadeye Navigator's soulbond ability and Lotus Cobra twice.
3. Resolve both Lotus Cobra triggers, adding 1.
4. Resolve both Deadeye Navigator triggers, repairing it and Dryad Arbor.
5. Repeat.