X!Soltus O also known as XS is one of the members or recruits of X!Gaster to cause fights or problems in the multiverses and underverse line times. X!Soltus is quiet and very, very serious when he fights, in fact he could be compared to X!Frisk when it comes to being serious in fights, His claws that glow purple, can cause damage depending on whether you are far or close. The soul of X!Soltus like the others of XTale is a soul with a white heart and half purple