Jan Jansen, Chaos Crafter, Thornbite Staff, and Ashnod's Altar

Prerequisites

• Jan Jansen, Chaos Crafter on the battlefield
• Thornbite Staff on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Jan Jansen's second ability by tapping it and sacrificing another noncreature artifact, creating two 1/1 Construct artifact creature tokens
2. Activate Ashnod's Altar by sacrificing a Construct, adding
3. The Construct dies, triggering Jan Jansen, untapping Jan Jansen
4. Activate Jan Jansen's first ability by tapping it and sacrificing the remaining Construct
5. The Construct dies, triggering Jan Jansen, untapping Jan Jansen
6. Resolve the Jan Jensen ability, creating two Treasure tokens
7. Repeat

Results

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