Oltec Matterweaver + Kor Skyfisher + Kaya, Geist Hunter

Oltec Matterweaver

Kor Skyfisher

Kaya, Geist Hunter

How it works

1. Activate Kaya's second loyalty ability by removing two loyalty counters from it, causing you to double all tokens you create this turn.
2. Cast Kor Skyfisher by paying 1.
3. Oltec Matterweaver triggers, creating two token copies of any Treasure or Gold token you control.
4. When Kor Skyfisher enters the battlefield, it triggers, returning itself from the battlefield to your hand.
5. Activate two Treasures by tapping and sacrificing them, or two Golds by sacrificing them, adding 1.
6. Repeat from step 2.

This clever loop relies on Kaya, Geist Hunter's minus ability to double your token generation, turning a single mana-producing artifact into a net-positive engine. When you cast Kor Skyfisher, Oltec Matterweaver intercepts the creature spell to create two copies of an existing artifact token instead of just one—a duplication rate entirely fueled by Kaya's passive-style replacement effect. The returning Kor Skyfisher bounces itself right back to your hand, while sacrificing the generated Treasures or Golds yields the exact mana needed to recast it.