Cast Trickery Charm by paying , giving Ingenious Artillerist the Pirate creature type until end of turn.
Cause an artifact to enter the battlefield under your control.
Ingenious Artillerist triggers, dealing 1 damage to each opponent.
Malcolm triggers, as Ingenious Artillerist is a Pirate due to Trickery Charm, creating a Treasure token for each opponent dealt damage this way.
When the Treasure(s) enter, Ingenious Artillerist triggers that many times.
Resolve the first Ingenious Artillerist trigger, dealing 1 damage to each opponent.
Repeat from step 4.
This clever loop relies on turning your non-Pirate permanents into swashbucklers, transforming every piece of collateral into a self-sustaining engine. By using Trickery Charm to grant Ingenious Artillerist the Pirate creature type, you bridge the gap between its artifact-counting damage and Malcolm, Keen-Eyed Navigator's wealth generation. Every time Ingenious Artillerist deals damage to an opponent via its own trigger, Malcolm, Keen-Eyed Navigator rewards you with a Treasure token; in turn, that new artifact entering the battlefield immediately triggers Ingenious Artillerist again to keep the loop spinning endlessly.