It's unlikely that I'm the first to say this, but I really, really want the visual changes to Battle Sprites to have the option to have the current visual changes from picking ultimate abilities not be tied to ultimate abilities.
It really sucks that these visual changes are tied to ultimate abilities as on some battle sprites such as Gun Pup Drakon and Love Puppy Seraphynx, in order to avoid your Gun Pup or Love Puppy turning into a Roarmulus Twin to some extent and becoming unrecognizeable as the enemy type they were originally meant to resemble, you have to pick bad ultimate abilities, or avoid picking them altogether. Drakon is an incredibly lackluster sprite without its ultimate abilities, more specifically Backfire Barrier and Frenzied Firestorm. They are however from opposite visual "sets", and these sets do not seem like they were designed to be mixed - the result becomes something that looks mostly like a Roarmulus Twin, or perhaps a Gun Pup with its jaw (half of its head) in a completely wrong color and shape. Seraphynx is at least still useful without its ultimates, but sacrificing Disintegration Ray makes it considerably less useful against Vanaduke. So you're left with the options of getting a weird, pink, dot-eyed thing that resembles a Roarmulus Twin, or sacrificing some usefulness of your Battle Sprite. I know MULTIPLE people at this point who have chosen to not get any ultimate abilities on their Love Puppy Seraphynx because of this, and I know a person who chose not to get Backfire Barrier (Drakon's most useful skill) because it would mess up how that one looks. I also know people who have picked the "wrong" ultimates on a default Drakon because they wanted wings on it, which is also pretty understandable!

I feel like the solution is simple - make battle sprites have ultimate visual changes not tied to ultimate abilities. You could also have a paid Supply Depot item that lets you change your sprite's looks, perhaps just an Ultimate Evo Catalyst could do this. I believe this would make battle sprite reskins sell better, as I know some people who are uninterested in getting certain reskins due to these issues with ultimate abilities.

You'd of course still be able to inspect teammates to check what abilities their sprites have, if that's something you're concerned with. Additionally it's worth addressing that, yes, one might argue that the visual ultimate changes are somewhat thematic to the effects of said ultimates, but if you're sitting there asking "How could a Drakon possibly stun an enemy with a fireball fired from its mouth without a large horn!?", then I ask you how a Drakon could possibly stun an enemy with a fireball fired from its mouth if it's a levitating pig or monkey.

Thank you for taking the time to read this, please let me know your thoughts