Missy + Phyrexian Altar + Warbreak Trumpeter

Missy

Phyrexian Altar

Warbreak Trumpeter

How it works

1. Activate Phyrexian Altar by sacrificing Warbreak Trumpeter, adding .
2. When Warbreak Trumpeter dies, Missy's first ability triggers, returning Warbreak Trumpeter from your graveyard to the battlefield face down as a 2/2 Cyberman artifact creature.
3. Activate Warbreak Trumpeter's morph ability by paying , turning it face up.
4. Warbreak Trumpeter triggers, creating zero tokens.
5. Repeat.

This clever loop turns Warbreak Trumpeter into an endless recycling engine, fueled entirely by Phyrexian Altar to generate infinite sacrifices, deaths, and entries to the battlefield. Whenever Warbreak Trumpeter meets its end at the altar, Missy steps in to immediately resurrect it from the graveyard as a face-down 2/2 Cyberman artifact creature. From there, you simply pay Warbreak Trumpeter's morph cost to flip it face up, triggering its ability—and because its value for $X$ is zero, it resets instantly without leaving any extra tokens behind, ready to be sacrificed to the altar once more.