Monk Gyatso, Lightning Greaves, and Metalworker

Prerequisites

• Monk Gyatso on the battlefield
• Lightning Greaves on the battlefield
• Metalworker on the battlefield

Steps

1. Activate Lightning Greaves' equip ability by paying , targeting Metalworker
2. Monk Gyatso triggers
3. Choose not to airbend Metalworker
4. Resolve Lightning Greaves' ability, attaching it to Metalworker
5. Activate Metalworker by tapping it, revealing at least one artifact card from your hand and 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 Metalworker
8. Monk Gyatso triggers, airbending Metalworker
9. The Lightning Greaves ability fizzles due to no longer having a legal target
10. Cast Metalworker from exile by paying
11. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite colorless mana
• Infinite storm count