Malcolm, Keen-Eyed Navigator + Unnatural Selection + Reckless Fireweaver

Prerequisites

• You have a way to cause an artifact to enter the battlefield under your control.

Steps

1. 1Activate Unnatural Selection by paying , giving Reckless Firweaver the Pirate creature type until end of turn.
2. 2Cause an artifact to enter the battlefield under your control.
3. 3Reckless Fireweaver triggers, dealing 1 damage to each opponent.
4. 4Malcolm triggers, as Reckless Fireweaver is a Pirate due to Unnatural Selection, creating a Treasure token for each opponent dealt damage this way.
5. 5When the Treasure(s) enter, Reckless Fireweaver triggers that many times.
6. 6Resolve the first Reckless Fireweaver trigger, dealing 1 damage to each opponent.
7. 7Repeat from step 4.

Effects

• Infinite colored mana
• Infinite damage
• Infinite Treasure tokens