Malcolm, Keen-Eyed Navigator, Hedron Detonator, and Maskwood Nexus

Prerequisites

• Malcolm, Keen-Eyed Navigator on the battlefield
• Hedron Detonator on the battlefield
• Maskwood Nexus on the battlefield
• You have a way to cause an artifact to enter the battlefield under your control

Steps

1. Cause an artifact to enter the battlefield under your control
2. Hedron Detonator triggers, dealing 1 damage to target opponent
3. Malcolm triggers, creating a Treasure token
4. Treasure token enter the battlefield, triggering Hedron Detonator, dealing 1 damage to target opponent
5. Repeat from step 2

Results

• Infinite colored mana
• Infinite damage
• Infinite Treasure tokens