Korvold, Fae-Cursed King, Pitiless Plunderer, Zombie Infestation, and Umbral Collar Zealot

Prerequisites

• Korvold, Fae-Cursed King on the battlefield
• Pitiless Plunderer on the battlefield
• Zombie Infestation on the battlefield
• Umbral Collar Zealot on the battlefield

Steps

1. Activate Umbral Collar Zealot by sacrificing another creature
2. Korvold's second ability and Pitiless Plunderer trigger
3. Resolve the Korvold trigger, putting a +1/+1 counter on it and causing you to draw a card
4. Resolve the Pitiless Plunderer trigger, creating a Treasure token
5. Resolve the Umbral Collar Zealot ability, putting a +1/+1 counter on it
6. Activate the Treasure by tapping and sacrificing it, adding one mana of any color
7. Korvold's second ability triggers, putting a +1/+1 counter on it and causing you to draw a card
8. Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token
9. Repeat

Results

• Infinite self-discard triggers
• Near-infinite ETB
• Infinite draw triggers
• Infinite looting
• Near-infinite LTB
• Near-infinite death triggers
• Near-infinite sacrifice triggers
• Near-infinite colored mana
• Near-infinite +1/+1 counters on Korvold
• Near-infinite surveil 1