deimos isnt a reskin its kratos's brother isnt it?
Ah sorry, I didn't explain myself properly. I mean it as character who are reskinned to look/be other characters by image (not moves) etc.
A good example is Tekken 3's Tiger (who is basically Eddy) although he did have his own arcade story...
For example say a new player saw this new portrait they might then think that the character plays different to Kratos, and then it created confusion.
Fighters try to prioritise being able to know and read your opponent rather than immersion - for example in Soul Calibur it feels more like you are versing a move set rather than a character (and they show this by characters having that little tile silhouette thing)