Three Blind Mice, Doubling Season, and Kaya, Intangible Slayer

Prerequisites

• Three Blind Mice on the battlefield
• Doubling Season on the battlefield
• Kaya, Intangible Slayer on the battlefield
• Kaya has at least three loyalty counters on it

Steps

1. Activate Kaya's third loyalty ability by removing three loyalty counters from it, exiling Three Blind Mice and creating two token copies of it that are 1/1 Soldiers in addition to their other types
2. The Three Blind Mice tokens enter the battlefield with two lore counters on them due to Doubling Season, triggering their first and second chapter abilities
3. Resolve the first Three Blind Mice triggers, creating four 1/1 Mouse creature tokens
4. Resolve the next Three Blind Mice trigger, creating two token copies of a Three Blind Mice token
5. Repeat from step 2
6. Once you have infinite Three Blind Mice triggers, you may use them to copy any token(s) you control

Results

• Infinite copies of tokens you control
• Infinite creature tokens
• Infinite ETB
• Infinite Three Blind Mice tokens