Sidisi, Regent of the Mire + Sister Hospitaller + Sky Hussar + Phantom Train

Sidisi, Regent of the Mire

Sister Hospitaller

Sky Hussar

Phantom Train

How it works

1. Activate Sidisi by tapping it and sacrificing Sky Hussar, returning Sister Hospitaller from your graveyard to the battlefield.
2. When Sister Hospitaller enters the battlefield, it triggers, returning Sky Hussar from your graveyard to the battlefield and causing you to gain 5 life.
3. When Sky Hussar enters the battlefield, it triggers, untapping all creatures you control
4. Activate Phantom Train by sacrificing Sister Hospitaller.
5. Repeat.

This clever recursion engine feeds on a continuous cycle of sacrifice and revival, anchored by Sidisi, Regent of the Mire turning a lesser creature into something greater. By sacrificing Sky Hussar to Sidisi's tap ability, you dredge Sister Hospitaller out of your graveyard; Sister Hospitaller's entry then immediately pulls the Hussar right back while padding your life total. Meanwhile, Phantom Train stands ready to consume Sister Hospitaller as an artifact or creature sacrifice, fueling its own growth while sending the Sister back to the graveyard to restart the loop. Every iteration of Sky Hussar arriving also untaps your entire board, leaving you with endless entry and death triggers, infinite lifegain, and wide-open utility for the rest of your permanents.