Malcolm, Keen-Eyed Navigator + Runed Stalactite + Weftstalker Ardent

Malcolm, Keen-Eyed Navigator

Runed Stalactite

Weftstalker Ardent

How it works

1. Cause an artifact to enter the battlefield under your control.
2. Weftstalker Ardent triggers, dealing 1 damage to each opponent.
3. Malcolm triggers, as Weftstalker Ardent is a Pirate due to Runed Stalactite, creating a Treasure token for each opponent dealt damage this way.
4. When the Treasure(s) enter, Weftstalker Ardent triggers that many times.
5. Resolve the first Weftstalker Ardent trigger, dealing 1 damage to each opponent.
6. Repeat from step 3.

This ingenious loop turns a simple artifact entry into a devastating cascade by transforming a non-Pirate into the ultimate plunderer. Once Runed Stalactite is equipped to Weftstalker Ardent, its passive type-granting turns the Ardent into a Pirate, allowing Malcolm, Keen-Eyed Navigator to spot the damage dealt by Weftstalker Ardent's entry trigger and reward you with a bounty of Treasure tokens. Because every new Treasure counts as an artifact entering the battlefield, it triggers Weftstalker Ardent all over again to sustain the loop indefinitely.