Zimone, Quandrix Prodigy, Retreat to Coralhelm, Spelunking, and Izzet Boilerworks

Prerequisites

• Zimone, Quandrix Prodigy on the battlefield
• Retreat to Coralhelm on the battlefield
• Spelunking on the battlefield
• Izzet Boilerworks in hand
• available

Steps

1. Activate Zimone's first ability by paying and tapping it, putting Izzet Boilerworks from your hand onto the battlefield untapped due to Spelunking
2. When Izzet Boilerworks enters the battlefield, it and Retreat to Coralhelm trigger
3. Holding priority, activate Izzet Boilerworks by tapping it, adding
4. Resolve the Izzet Boilerworks 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 red mana
• Infinite blue mana
• Infinite landfall triggers