Malcolm, Keen-Eyed Navigator, Magmaw, Xorn, and Maskwood Nexus

Prerequisites

• Malcolm, Keen-Eyed Navigator on the battlefield
• Magmaw on the battlefield
• Xorn on the battlefield
• Maskwood Nexus on the battlefield
• You control another nonland permanent
• available

Steps

1. Activate Magmaw by paying and sacrificing another nonland permanent, dealing 1 damage to an opponent
2. Malcolm triggers, creating two Treasure tokens
3. Activate a Treasure by tapping and sacrificing it, adding
4. Repeat

Results

• Infinite damage