Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Melira's Keepers, and Phantom Train

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Melira's Keepers on the battlefield
• Phantom Train on the battlefield

Steps

1. Activate Phantom Train by sacrificing Melira's Keepers When Melira's Keepers dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its static effect
2. Resolve the Phantom Train ability
3. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite +1/+1 counters on a creature