Cast Trickery Charm by paying , giving Reckless Fireweaver the Pirate creature type until end of turn.
Cause an artifact to enter the battlefield under your control.
Reckless Fireweaver triggers, dealing 1 damage to each opponent.
Malcolm triggers, as Reckless Fireweaver is a Pirate due to Trickery Charm, creating a Treasure token for each opponent dealt damage this way.
When the Treasure(s) enter, Reckless Fireweaver triggers that many times.
Resolve the first Reckless Fireweaver trigger, dealing 1 damage to each opponent.
Repeat from step 4.
This clever loop turns a modest instant into a game-ending engine by bridging two unlikely allies. By casting Trickery Charm, you temporarily redefine Reckless Fireweaver as a Pirate, allowing it to satisfy the tribal condition required by Malcolm, Keen-Eyed Navigator whenever it deals damage. Every time an artifact enters the battlefield—such as the Treasure tokens generated by Malcolm's trigger—Reckless Fireweaver triggers anew to deal damage, creating a self-sustaining cycle of pings and treasures that quickly overwhelms your opponents.