>>56426064First, I am a loyal slave to Allah and he guides my whole life
Now with that settled, get ready for my wall of text.
1. Firstly here BST is too low. The other regional catmons like Persian and Liepard have a BST of around 440 or higher. Delcatty is a stone evolution and is at a low BST of 400. So this should be buffed to by at least 40 points. There are two ways you can do this. One is to put all these points into Attack, giving her an Attack of 105. This would be the more sensible buff but I am not in favor of it. For one, it makes her too similar to other regional catmons, specifically Persian. The other catmons are all pretty fast and have at least an okay attack stat (except Meowstic). This would rob Delcatty of a more unique identity she could have, so I propose instead to put 20 points into HP and 10 into Defense and Special Defense. Delcatty is the only Pokemon that gives 1 HP and 1 Speed EV upon defeat, and so her HP and Speed stat used to be tied as her highest stats until her speed was buffed in gen 7. So giving her a HP stat of 90 evens those stats once again. This change along with the Def/SpDef buffs gives Delcatty a playstyle more defensive than the other regional catmons, even Meowstic. This not only helps her stand out but it is more fitting for her theme as a support mon since she is already strongly associated with Assist and Heal Bell. Delcatty is supposed to dislike fighting, why should it be an offensive Pokemon?
So basically I would give her one of these two stat changes
HP - 90
Attack - 65
Defense - 75
Special Attack - 55
Special Defense - 65
Speed - 90
BST - 440
OR
HP - 90
Attack - 65
Defense - 85
Special Attack - 55
Special Defense - 75
Speed - 90
BST - 460