Monk Gyatso, Lightning Greaves, and Leafkin Druid

Prerequisites

• Monk Gyatso on the battlefield
• Lightning Greaves on the battlefield
• Leafkin Druid on the battlefield

Steps

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

Results

• Infinite ETB
• Infinite LTB
• Infinite storm count