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

Korvold, Fae-Cursed King

Pitiless Plunderer

Zombie Infestation

Phyrexian Altar

How it works

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.

This loop transforms a modest engine into an overwhelming storm of value by feeding the graveyard and hand simultaneously. Phyrexian Altar provides the initial sacrifice outlet to generate mana, while Pitiless Plunderer ensures every creature death refunds you with a Treasure token to keep the chain moving. With Korvold, Fae-Cursed King on the battlefield, every single sacrifice and subsequent Treasure crack triggers card draw and pumps Korvold's size, keeping your hand full of ammunition. Finally, Zombie Infestation utilizes that drawn fuel by discarding cards to churn out fresh Zombie bodies, feeding right back into the Altar to repeat the cycle indefinitely.