Eternal Scourge, Ashnod's Altar, Unscythe, Killer of Kings, and Marauding Raptor

Prerequisites

• Eternal Scourge in hand or in exile
• Ashnod's Altar on the battlefield
• Unscythe, Killer of Kings on the battlefield
• Marauding Raptor on the battlefield
• Unscythe attached to Marauding Raptor
• available

Steps

1. Cast Eternal Scourge either from your hand or from exile by paying
2. When Eternal Scourge enters the battlefield, Marauding Raptor triggers, dealing 2 damage to Eternal Scourge
3. Activate Ashnod's Altar by sacrificing Eternal Scourge, adding
4. When Eternal Scourge dies, Unscythe triggers, exiling Eternal Scourge and creating a 2/2 Zombie creature token
5. When the Zombie enters the battlefield, Marauding Raptor triggers
6. Holding priority, activate Ashnod's Altar by sacrificing the Zombie, adding
7. When the Zombie dies, Unscythe triggers, failing to exile the Zombie as it no longer exists
8. Resolve the Marauding Raptor trigger, doing nothing as the Zombie is no longer on the battlefield
9. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count