Initial thought this morning: meh
After thinking a bit, I'm just thinking back in 2021 where there were several fusions that folks were not high on that have scaled in value (Yoshi, and especially Cybele stick out. I can't remember the perception on Versulf but he's ended up being tremendous in certain UNM CB teams, too.)
It's kind of a weird kit. I agree Hydra or DT is where Opardin likely shines, perhaps paired with a champ like Urogrim, among a few others. I wish the A3 were a full cleanse, not sure that would make him overpowered.
It's a unique passive and we've seen quite a few fusion champs come out that end up designed for future content, so unless he's a pain to pick up I'm probably gonna give it a shot. I do think from a faction standpoint it would've been nice if this were in one that didn't really have a problem with champs that provide sustainability, given Barbs have Scyl.
It's one of those that I don't think I'm excited about, but if you're already playing a bunch in the first place and it's not super annoying to get, might as well just do it. Also, FOMO. :)