Fain, the Broker, Necrotic Ooze, and Barrenton Medic

Prerequisites

• Fain, the Broker in the graveyard
• Necrotic Ooze on the battlefield
• Barrenton Medic in the graveyard
• Necrotic Ooze does not have summoning sickness

Steps

1. Activate Necrotic Ooze using Barrenton Medic's second ability by putting a -1/-1 counter on it, untapping it
2. Activate Necrotic Ooze using Fain's second ability by tapping it and removing a -1/-1 counter from it, creating a Treasure token
3. Repeat
4. Once you have infinite Treasure tokens, you may instead use Fain's third ability to create infinite Inklings, then use Fain's fourth ability to untap Necrotic Ooze
5. You then can also use Fain's first ability to get infinite +1/+1 counters

Results

• Infinite +1/+1 counters
• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite Treasure tokens