Kirol, Attentive First-Year, Sunstrike Legionnaire, and The Mighty Thor, Jane Foster

Prerequisites

• Kirol, Attentive First-Year on the battlefield
• Sunstrike Legionnaire on the battlefield
• The Mighty Thor, Jane Foster on the battlefield

Steps

1. At the beginning of your end step, The Mighty Thor triggers
2. Holding priority, activate Kirol by tapping it and Sunstrike Legionnaire
3. copying The Mighty Thor's trigger, targeting Kirol
4. Resolve the copy of The Mighty Thor's trigger, blinking Kirol
5. When Kirol enters, Sunstrike Legionnaire triggers, untapping Sunstrike Legionnaire
6. Repeat from step 2

Results

• Infinite ETB
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control