Vorinclex, Monstrous Raider, Architect of the Untamed, Gonti's Aether Heart, and Kaya, Geist Hunter

Prerequisites

• Vorinclex, Monstrous Raider on the battlefield
• Architect of the Untamed on the battlefield
• Gonti's Aether Heart on the battlefield
• Kaya, Geist Hunter on the battlefield
• You have at least eight
• Kaya has at least two loyalty counters on it

Steps

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 , creating two 6/6 Beast artifact creature tokens
3. When the Beast enters the battlefield, Gonti's Aether Heart triggers twice, causing you to get eight
4. Repeat from step 2

Results

• Infinite ETB
• Infinite creature tokens