Malcolm, Keen-Eyed Navigator + Imagecrafter + Ingenious Artillerist

Malcolm, Keen-Eyed Navigator

Imagecrafter

Ingenious Artillerist

How it works

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