Agatha's Soul Cauldron, Kiki-Jiki, Mirror Breaker, and Combine Guildmage

Prerequisites

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

Steps

1. Activate Combine Guildmage's first ability by paying and tapping it, causing each creature you control to enter the battlefield with an additional +1/+1 counter on it this turn
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 that enters the battlefield with at least one +1/+1 counter on it due to Combine Guildmage
3. Repeat step 2

Results

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