Kiora's Follower + Judge of Currents + Vesuvan Doppelganger

Kiora's Follower

Judge of Currents

Vesuvan Doppelganger

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

This clever loop thrives on mutual cooperation, using Kiora's Follower and a cloned creature to endlessly untap one another while reaping the rewards of their continuous exertion. By having Vesuvan Doppelganger enter the battlefield as a copy of Kiora's Follower, you create a symmetrical pair of untappers that can target each other back and forth indefinitely. Meanwhile, Judge of Currents sits quietly on the battlefield, watching your Merfolk tap away and steadily translating that endless cycle into infinite life.