Remembrance + Deathrender + Arashin Sovereign + Phantom Train

Remembrance

Deathrender

Arashin Sovereign

Phantom Train

How it works

1. Activate Phantom Train by sacrificing Arashin Sovereign.
2. When Arashin Sovereign dies, it, Deathrender and Remembrance trigger.
3. Resolve the Arashin Sovereign trigger, causing you to put it on top of your library from your graveyard.
4. Resolve the Remembrance trigger, causing you to search your library for Arashin Sovereign and put it into your hand.
5. Resolve the Deathrender trigger, putting Arashin Sovereign from your hand onto the battlefield, and attaching Deathrender to it.
6. Resolve the Phantom Train ability
7. Repeat.

This looping engine relies on Phantom Train to constantly sacrifice Arashin Sovereign, generating endless death and sacrifice triggers to fuel your board. Each time Arashin Sovereign goes to the graveyard, Deathrender leaps into action to instantly drop it right back onto the battlefield from your hand—while Remembrance seamlessly tutors another copy straight to your hand so the cycle never ends. This endless loop is further supercharged by Phantom Train's ability to constantly grow larger with fresh +1/+1 counters as you repeat the process.