Kiora's Follower + Judge of Currents + Mercurial Pretender

Kiora's Follower

Judge of Currents

Mercurial Pretender

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

By using Mercurial Pretender as a clone of Kiora's Follower, you create a symbiotic loop where each creature takes turns tapping to untap the other. This endless activation is watched over by Judge of Currents, whose passive ability triggers every single time either Merfolk becomes tapped. The result is a perpetual motion machine of mutual untapping that floods your life total to infinity.