Malcolm, Keen-Eyed Navigator + Reckless Fireweaver + Imagecrafter

Malcolm, Keen-Eyed Navigator

Reckless Fireweaver

Imagecrafter

How it works

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