Malcolm, Keen-Eyed Navigator, Stalactite Dagger, and Hedron Detonator

Prerequisites

• Malcolm, Keen-Eyed Navigator on the battlefield
• Stalactite Dagger on the battlefield
• Hedron Detonator on the battlefield

Steps

1. Cause an artifact to enter the battlefield under your control
2. Hedron Detonator triggers, dealing 1 damage to each opponent
3. Malcolm triggers, as Hedron Detonator is a Pirate due to Stalactite Dagger, creating a Treasure token for each opponent dealt damage this way
4. When the Treasure(s) enter, Hedron Detonator triggers that many times
5. Resolve the first Hedron Detonator trigger, dealing 1 damage to each opponent
6. Repeat from step 3

Results

• Infinite Treasure tokens
• Infinite colored mana
• Infinite damage