Scaled Herbalist + Azorius Chancery + Elven Raft-Steerer

Scaled Herbalist

Azorius Chancery

Elven Raft-Steerer

How it works

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