Crystal Shapeshifter

Crystalline shapeshifters are Slayer monsters located on Tarddiad after completion of the quest The Light Within. They are also powerful level 5 warrior units for Seren in Armies of Gielinor, with the unique ability to teleport onto enemies' tiles and kill them.

Crystalline Shapeshifters are more dangerous than their combat level suggests. They are able to use abilities, and will change their combat style depending upon your combat triangle weakness and the type of protect from/deflect prayer you are using.