Savin’s said before that there are plans for mods such as dragons, but it’s meant to be endgame loot— that is to say, only obtainable near the end of the game, which is why I was wondering if unicorn mods were planned for similar things. If there isn’t, and there’s nowhere else to put such a mod, I think the centaur village would still be a good candidate since it’s the only place such a mob’s shown up and it wouldn’t be the first time such a thing’s been deus ex machina’d for the sake of entertainment (see: aesthetic wings, mantinip giving scorpion tails). I just don’t see why we don’t have one or one’s not in the works, given we already have horn support and it’s an iconic monster.
Dragons exist in the CoC2 universe. Even aside from Kasyrra and all of her "daughters," there are mentions of dragons elsewhere, like Byvernia who boasts of being able to slay one, or the weird hallucination Genova puts the Champ in (I say this only because it was described as a dragon, not a fire-breathing lizard, as far as I remember), and how the Salamander race description talks about how it's believed that the Salamander race were created as a result of something done by the dragons, plus it mentions how "dragons themselves are notoriously tight-lipped about just about everything." Dragon mods are endgame stuff, but we know about actual dragons, rather than unicorns, where there are no unicorns and the closest example is just a corrupted variant of a centaur who was specifically given a horn to go along with the corruption just so that she could fulfill a role she was being designated.
Yeah, I wasn’t even thinking about taur configurations. I know it’s not even considerable with how CoC2’s built, but I was really just thinking a glowier version of the marefolk transformitaves.
As I said, the only Unitaur isn't even really a Unitaur. The horn is purely just from corruption, and it's sort of just used for her to use her magic. And none of the marefolk have any unicorn-esque appearances either. The only Marefolk we see corrupted, the former chieftain, and her corruption is just "fuck everything" type, rather than having a horn. If there were a unicorn transformation, it would probably either just be a corrupted transformative (like Lycanthorn), or it would come with a whole new race that doesn't seem to exist at present. Of course, there are transformatives for races that we do not see, but to my knowledge those are foxmorphs (may be tied to it being the first transformative in the game. Also, many Kitsune encounters can drop a fox berry or ice shard, so it's somewhat tied to them, even if they're not normally full foxes), ursine, and porcine. Also perhaps deers and spiders, but those are non-tauric, and there seem to be tauric counterparts to both of those in the dryads and driders. Also maybe Lycanthorn because we don't see any corrupted Lupines, and these are Wolfsboon that were tainted by the Alraune.
Anyways. Since you think of it as a glowier version of marefolk transformatives, I suppose you're essentially asking for a corrupted variant (since the one thing even remotely related to a unicorn is only that way via corruption). So I suppose it could make sense to have one, given that the Lycanthorn gives precedent. I also kinda want more corrupted transformatives like Lycanthorn, honestly. But there's the question of how they get corrupted. The Lycanthorn comes from the Alraune's corruption seeping into the forest, but Mare's Barley is some grass which the Marefolk grow, and there isn't a big corrupt plant monster in the Valley. And since it's grown by the Marefolk, the majority of which are decidedly not corrupt, I doubt they'd be doing something to it to corrupt it themselves. I've never done the corrupt path for the Centaur village, so I'm not sure if the Marefolk get taken over by the Centaurs, but I haven't seen anything to suggest that they do, just that the Centaur village stays corrupted. So I'm not sure how it would come about, in-universe, or why it would come about, in-universe. Not that all transformatives necessarily need an explanation, Ursus Bulbs don't really have much aside from "Onion with bear ears equals bear transformation," but a unicorn's similarity to marefolk would really want one should a transformative for it come about.