Pitiless Plunderer + Reassembling Skeleton + Roaming Throne + Phantom Train

Pitiless Plunderer

Reassembling Skeleton

Roaming Throne

Phantom Train

How it works

1. Activate Phantom Train by sacrificing Reassembling Skeleton.
2. When Reassembling Skeleton dies, Pitiless Plunderer triggers twice, creating two Treasure tokens.
3. Resolve the Phantom Train ability.
4. Activate the Treasure tokens by tapping and sacrificing them, adding 1.
5. Activate Reassembling Skeleton by paying 1, returning it from your graveyard to the battlefield tapped.
6. Repeat.

This clever loop turns the graveyard into a tireless engine by using Phantom Train as a reliable sacrifice outlet to continuously feed the machine. Whenever Reassembling Skeleton hits the dirt, Pitiless Plunderer springs into action, and the presence of Roaming Throne doubles that death trigger to net you two Treasure tokens instead of one. Sacrificing those Treasures refunds the exact mana needed to bring Reassembling Skeleton right back to the battlefield, while every iteration leaves behind a permanent +1/+1 counter on Phantom Train to grow your vehicle into an unstoppable threat.