Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Morselhoarder, and Shilgengar, Sire of Famine Combo

Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Morselhoarder, and Shilgengar, Sire of Famine

Here's how the cards Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Morselhoarder, and Shilgengar, Sire of Famine results in Infinite LTB, Infinite ETB, Infinite colored mana, Infinite sacrifice triggers, Infinite death triggers, Infinite self-discard triggers, Infinite draw triggers, Infinite rummaging, and Infinite Blood tokens

Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight

Morselhoarder

Shilgengar, Sire of Famine

Prerequisites

Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
Morselhoarder on the battlefield
Shilgengar, Sire of Famine on the battlefield

Steps

If Morselhoarder has any -1/-1 counters on it, activate it by removing a -1/-1 counter from it, adding one mana of any color
Repeat step 1 as necessary until Morselhoarder has no -1/-1 counters on it
Activate Shilgengar by sacrificing Morselhoarder
When Morselhoarder dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
Resolve the Shilgengar ability
Repeat