Legacy Weapon, Faeburrow Elder, Mana Reflection, Intruder Alarm, and Eternal Scourge

Prerequisites

• Legacy Weapon on the battlefield
• Faeburrow Elder on the battlefield
• Mana Reflection on the battlefield
• Intruder Alarm on the battlefield
• Eternal Scourge on the battlefield
• undefined

Steps

1. Activate Faeburrow Elder by tapping it, adding
2. Activate Legacy Weapon by paying , exiling Eternal Scourge
3. Cast Eternal Scourge from exile by paying
4. When Eternal Scourge enters the battlefield, Intruder Alarm triggers, untapping all creatures
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite storm count
• Infinite mana creatures you control can produce
• Exile all permanents opponents control
• Infinite untap of creatures