Kiora's Follower + Judge of Currents + Gigantoplasm

Kiora's Follower

Judge of Currents

Gigantoplasm

How it works

1. Activate Kiora's Follower by tapping it.
2. When Kiora's Follower becomes tapped, Judge of Currents triggers, causing you to gain 1 life.
3. Resolve Kiora's Follower's ability from step 1, untapping Gigantoplasm.
4. Activate Gigantoplasm by tapping it.
5. When Gigantoplasm becomes tapped, Judge of Currents triggers, causing you to gain 1 life.
6. Resolve Gigantoplasm's ability from step 4, untapping Kiora's Follower.
7. Repeat.

This loop relies on an infinite untap dance between Kiora's Follower and Gigantoplasm, which enters the battlefield as a copy of the Follower so that each creature can untap the other. As you bounce the tap-and-untap actions back and forth between them, Judge of Currents sits quietly on the board, patiently watching every tap to turn your endless cycle into an infinite stream of life.