Golgari Rot Farm + Scaled Herbalist + Elven Raft-Steerer

Golgari Rot Farm

Scaled Herbalist

Elven Raft-Steerer

How it works

1. Activate Scaled Herbalist by tapping it, putting Golgari Rot Farm from your hand onto the battlefield.
2. When Golgari Rot Farm enters the battlefield, it and Elven Raft-Steerer trigger.
3. Resolve the Golgari Rot Farm trigger, returning itself from the battlefield to your hand.
4. Resolve the Elven Raft-Steerer trigger, untapping Scaled Herbalist.
5. Repeat.