Shape-memory alloys are certain mixture of metals that can revert to a certain shape usually once warmed. Most of them work by crystallizing to a stable formation at a really high temperature. When the alloy is cooled down, they can be bent in all sorts of ways, but when the alloy is warmed up, it would seek their stable form, which was determined at a much higher temperature. This makes the metal looks like it is reforming into a shape it “remembered”.
Sagitinol (Steel/Ghost): Despite having large, tall bodies, they can be very malleable and easily dent even though they can easily recover. They can contort themselves to fit through small cracks and reform into their previous shape once they are through.













