Zimone, Quandrix Prodigy, Retreat to Coralhelm, Spelunking, and Simic Growth Chamber

Prerequisites

• Zimone, Quandrix Prodigy on the battlefield
• Retreat to Coralhelm on the battlefield
• Spelunking on the battlefield
• Simic Growth Chamber in hand
• available

Steps

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

Results

• Infinite green mana
• Infinite blue mana
• Infinite landfall triggers