Urza, Prince of Kroog, Esika's Chariot, Ashnod's Altar, and Kaya, Geist Hunter

Prerequisites

• Urza, Prince of Kroog on the battlefield
• Esika's Chariot on the battlefield
• Ashnod's Altar on the battlefield
• Kaya, Geist Hunter on the battlefield
• Kaya has at least two loyalty counters on it
• 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. Activate Urza by paying , creating two token copies of Esika's Chariot
3. When the Esika's Chariots enter the battlefield, their first abilities trigger, creating eight 2/2 Cat creature tokens
4. Activate Ashnod's Altar three times by sacrificing three tokens, adding six
5. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite creature tokens
• Infinite creature copies of artifacts you control