Monk Gyatso, Lightning Greaves, and Rainveil Rejuvenator

Prerequisites

• Monk Gyatso on the battlefield
• Lightning Greaves on the battlefield
• Rainveil Rejuvenator on the battlefield

Steps

1. Activate Lightning Greaves' equip ability by paying , targeting Rainveil Rejuvenator
2. Monk Gyatso triggers
3. Choose not to airbend Rainveil Rejuvenator
4. Resolve Lightning Greaves' ability, attaching it to Rainveil Rejuvenator
5. Activate Rainveil Rejuvenator by tapping it, adding at least
6. Activate Lightning Greaves' equip ability by paying , attaching it to Monk Gyatso
7. Activate Lightning Greaves' equip ability by paying , targeting Rainveil Rejuvenator
8. Monk Gyatso triggers, airbending Rainveil Rejuvenator
9. The Lightning Greaves ability fizzles due to no longer having a legal target
10. Cast Rainveil Rejuvenator from exile by paying
11. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite green mana
• Infinite storm count