Korvold, Fae-Cursed King, Pitiless Plunderer, Zombie Infestation, and Phyrexian Altar

Prerequisites

• Korvold, Fae-Cursed King on the battlefield
• Pitiless Plunderer on the battlefield
• Zombie Infestation on the battlefield
• Phyrexian Altar on the battlefield
• You control at least one additional creature

Steps

1. Activate Phyrexian Altar by sacrificing another creature, adding one mana of any color
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. Activate the Treasure by tapping and sacrificing it, adding one mana of any color
6. Korvold's second ability triggers, putting a +1/+1 counter on it and causing you to draw a card
7. Activate Zombie Infestation by discarding two cards, creating a 2/2 Zombie creature token
8. 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