Agatha's Soul Cauldron + Kiki-Jiki, Mirror Breaker + Cathars' Crusade

Agatha's Soul Cauldron
Kiki-Jiki, Mirror Breaker
Cathars' Crusade

Requires
Agatha's Soul Cauldron must be on the battlefield. Kiki-Jiki, Mirror Breaker must be in exile (exiled by Agatha's Soul Cauldron). Cathars' Crusade must be on the battlefield. You control at least one nonlegendary creature. You control at least one creature that has at least one +1/+1 counter on it and that does not have summoning sickness.
Steps
  1. 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.
  2. When the creature token enters the battlefield, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control.
  3. Repeat.
Results
Infinite +1/+1 counters. Infinite creature tokens with haste. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

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