Malcolm, Keen-Eyed Navigator + Reckless Fireweaver + Leyline of Transformation

Malcolm, Keen-Eyed Navigator

Reckless Fireweaver

Leyline of Transformation

How it works

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

This loop turns any initial artifact entry into a self-sustaining engine of doom, fueled entirely by the synergy between Leyline of Transformation and your crew. By turning all of your creatures into Pirates with the Leyline, Reckless Fireweaver is reclassified so that its own burn triggers satisfy Malcolm, Keen-Eyed Navigator's condition—each point of damage dealt to an opponent immediately conjures a fresh Treasure token. Those newly spawned Treasuress then re-trigger Reckless Fireweaver when they hit the battlefield, creating an endless loop of artifact arrivals, ping damage, and cascading mana generation until your opponents are entirely whittled away.