Kiki-Jiki, Mirror Breaker, Agatha's Soul Cauldron, and First Day of Class

Prerequisites

• Kiki-Jiki, Mirror Breaker in exile
• Agatha's Soul Cauldron on the battlefield
• First Day of Class in hand
• You control at least one other creature that has at least one +1/+1 counter on it and that does not have summoning sickness
• available

Steps

1. Cast First Day of Class by paying
2. Activate a creature you control with a +1/+1 counter on it using Kiki-Jiki's ability by tapping it, creating a token copy of any nonlegendary creature you control with haste
3. When the creature token enters the battlefield, First Day of Class triggers, putting a +1/+1 counter on it
4. Repeat from step 2

Results

• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers