Malcolm, Keen-Eyed Navigator | Trickery Charm

Cards

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

Cast
Trickery Charm by paying ({U} magic symbol) , 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 combo has been estimated to be Exhibition (Bracket 1+).