Nettle Drone + Retraction Helix

Nettle Drone

Retraction Helix

How it works

1. Cast Retraction Helix by paying , giving Nettle Drone an activated ability until end of turn.
2. Activate Nettle Drone by tapping it, returning the nonland permanent to your hand from the battlefield.
3. Cast the free permanent by paying 0.
4. Nettle Drone triggers, untapping itself.
5. Let the free permanent resolve and enter the battlefield.
6. Repeat from step 2.