Zimone, Quandrix Prodigy + Retreat to Coralhelm + Spelunking + Arid Archway

Zimone, Quandrix Prodigy

Retreat to Coralhelm

Spelunking

Arid Archway

How it works

1. Activate Zimone's first ability by paying 1 and tapping it, putting Arid Archway from your hand onto the battlefield untapped due to Spelunking.
2. When Arid Archway enters the battlefield, it and Retreat to Coralhelm trigger.
3. Holding priority, activate Arid Archway by tapping it, adding CC.
4. Resolve the Arid Archway trigger from step 2, returning itself from the battlefield to your hand.
5. Resolve the Retreat to Coralhelm trigger, untapping Zimone.
6. Repeat.