Sorcerer's Broom, Ashnod's Altar, and Kaya, Geist Hunter

Prerequisites

• Sorcerer's Broom on the battlefield
• Ashnod's Altar on the battlefield
• Kaya, Geist Hunter on the battlefield
• at most available

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. Use Ashnod's Altar to sacrifice another creature, or sacrifice a permanent by any other method
3. Sorcerer's Broom triggers, causing you to pay to create two creature tokens due to Kaya, Geist Hunter
4. Activate Ashnod's Altar twice by sacrificing the Sorcerer's Broom tokens, adding
5. Sorcerer's Broom triggers twice, and each Sorcerer's Broom token triggers once
6. Resolve all but one trigger, choosing not to pay
7. Resolve the final trigger, causing you to pay to create two creature tokens
8. Repeat from step 4

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite creature tokens