Eidolon of Adyr has to be some April fools joke
* Teleporting erratically. Idk when this was a fun boss mechanic in any game, like ever. (but I guess that comes down to personal preference)
* Spamming attacks with no wind up right after leaving teleport. (Elden Ring has a few bosses with such attacks aswell... looking at you, Graftrick, the Godded.. nobody likes those)
* you literally can't heal yourself, which makes the boss so over the top levels of unfair. Healed health turns into withered health. So your only option is to swing at him.
↪ * normally offensive spells would help you restore withered health aswell. But for whatever reason, in this specific boss fight, they just don't.
That's all I took from fighting him in co-op. I haven't touched him myself in solo play yet. Doubt, it will be any different. I have read older posts stating the boss is bugged af and nowhere near polished enough to be part of the game. I feel like these posts remain true even after 4 months.