Crystal Shapeshifters are Slayer monsters located on Tarddiad after completion of the quest The Light Within. They can fight with all three combat styles, and they will switch dependent on the combat style of armour you are wearing. Crystal Shapeshifters are more dangerous than their combat level suggests and should not be taken lightly, as they use combat abilities to a much greater extent than many other monsters. Angof can be spoken with to make the shapeshifters unaggressive if desired, which is recommended, as they have a very far aggression range.