Agatha's Soul Cauldron
Grist, the Hunger Tide
Cathars' Crusade

   Prerequisites

What do I need to start this combo?
Grist in exile (Grist exiled by Agatha's Soul Cauldron in exile).
Agatha's Soul Cauldron and Cathars' Crusade on the battlefield.
You control a creature that has a +1/+1 counter on it.

   Steps

How does this combo work?
1
Activate a creature using Grist's first loyalty ability by putting a loyalty counter on it, causing you to create a 1/1 Insect creature token and mill a card, and then put a loyalty counter on the creature and repeat the process if the card was an Insect.
2
When the Insect enters, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control. This causes the Insect to gain Grist's abilities due to Agatha's Soul Cauldron.
3
Repeat from step 1 using the Insect token instead.

   Results

What do I get from this combo?
Infinite +1/+1 counters
Infinite creature tokens
Infinite ETB
Infinite self-mill
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Isolated Chapel
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