Kiki-Jiki, Mirror Breaker, Thornbite Staff, and Workhorse

Prerequisites

• Kiki-Jiki, Mirror Breaker on the battlefield
• Thornbite Staff on the battlefield
• Workhorse on the battlefield

Steps

1. Activate Kiki-Jiki by tapping it, creating a token copy of Workhorse with haste, that enters the battlefield with four +1/+1 counters
2. Activate Workhorse four times by removing four +1/+1 counters from it, adding
3. Workhorse dies as a state-based action due to having zero toughness
4. Kiki-Jiki triggers, untapping itself
5. Repeat

Results

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