Remembrance + Mortuary + Shield Sphere + Phantom Train

Remembrance

Mortuary

Shield Sphere

Phantom Train

How it works

1. Activate Phantom Train by sacrificing Shield Sphere.
2. When Shield Sphere dies, Mortuary and Remembrance trigger.
3. Resolve the Mortuary trigger, putting Shield Sphere from your graveyard on top of your library.
4. Resolve the Remembrance trigger, searching your library for Shield Sphere and putting it into your hand.
5. Resolve the Phantom Train ability.
6. Cast Shield Sphere by paying 0.
7. Repeat.

This ingenious loop turns a fragile 0-mana artifact into an endless engine of growth and sacrifice. By using Phantom Train's ability to devour Shield Sphere, you trigger a cascade of graveyard and library interactions: Mortuary effortlessly recycles the sphere to the top of your deck while Remembrance plucks a fresh copy straight out into your hand. Because Shield Sphere costs nothing to cast, you can immediately redeploy it to the battlefield, feeding the Phantom Train infinite +1/+1 counters and churning out limitless triggers for your enter-the-battlefield, death, and sacrifice effects.