Final Transformation

Each creature you control with the Shapeshifter creature type becomes a X/X colorless Horror
with reach, trample, and menace.
Transformed creatures retain any counters,
effects, or equipment upon transformation.
If a transformed creature dies, exile it.
"I saw the soldiers, they twisted and writhed, growing before my very eyes, becoming... something else. I never
wish to see it again." — Lieutenant Alice Moore.