Activate Viscera Seer twice by sacrificing a nontoken creature you control and Slimefoot and Squee.
When the creatures die, Pitiless Plunderer triggers four times, creating four Treasure artifact tokens.
Resolve the Viscera Seer abilities, causing you to scry 1 twice.
Activate the Treasures by tapping and sacrificing them, adding 1.
Activate Slimefoot and Squee by paying 1 and sacrificing a Saproling.
When the Saproling dies, Pitiless Plunderer triggers twice, creating two Treasure artifact tokens.
Resolve the Slimefoot and Squee ability, returning it and another creature from your graveyard to the battlefield.
When Slimefoot and Squee enter the battlefield, it triggers, creating a 1/1 Saproling creature token.
Repeat.
This recursive loop turns a modest sacrifice engine into an endless engine of creation and excavation. **Viscera Seer** provides the sacrifice outlet to send your creatures to the graveyard, while **Pitiless Plunderer** fuels your mana supply by generating Treasure tokens whenever anything dies. The real magic happens because **Drivnod, Carnage Dominus** doubles all those death triggers, ensuring you rake in extra Treasures on every sacrifice. Finally, **Slimefoot and Squee** leverages that mana and the Saproling token it creates upon entering the battlefield to recur itself alongside another fallen creature, keeping the whole cycle spinning infinitely.