Malcolm, Keen-Eyed Navigator, Havoc Jester, and Runed Stalactite

Prerequisites

• Malcolm, Keen-Eyed Navigator on the battlefield
• Havoc Jester on the battlefield
• Runed Stalactite on the battlefield
• You control at least one Treasure token
• Runed Stalactite attached to Havoc Jester

Steps

1. Activate a Treasure token by tapping and sacrificing it, adding one mana of any color
2. Havoc Jester triggers, dealing 1 damage to any opponent
3. Malcolm triggers, creating a Treasure token
4. Repeat

Results

• Infinite colored mana
• Infinite damage