Kirol, Attentive First-Year, and Brago, King Eternal

Prerequisites

• Kirol, Attentive First-Year on the battlefield
• Brago, King Eternal on the battlefield

Steps

1. Deal combat damage using Brago, triggering its ability
2. Holding priority, activate Kirol by tapping it and another creature you control, copying Brago's trigger
3. Resolve the copy of Brago's trigger, blinking Kirol, the other creature and any other desired permanents
4. Repeat from step 2

Results

• Infinite ETB
• Infinite LTB
• Infinite blinking of nonland permanents