Architect of the Untamed + Gonti's Aether Heart + Primal Vigor + Kaya, Geist Hunter

Architect of the Untamed

Gonti's Aether Heart

Primal Vigor

Kaya, Geist Hunter

How it works

1. Activate Kaya's second loyalty ability by removing two loyalty counters from it, causing you to double any tokens you create this turn.
2. Activate Architect of the Untamed by paying eight E, creating four 6/6 Beast artifact creature tokens.
3. When the Beasts enter the battlefield, Gonti's Aether Heart triggers four times, causing you to get eight E.
4. Repeat from step 2.