This is largely unsorted feedback and thoughts I have so far, from position of wooden league.
Gaia - currently considered the worst god in comp. I feel her lush doesn’t spread well, not does it provide any real value. Atlanteans aren’t short on healing options, and 15% bonus speed on something that barely spreads is a joke.
I’d like to suggest idling oracles to be able to spread lush. This would give it offensive functionality similar to creep in SC2, and I feel would introduce some fun gameplay to the civ variant.
Caladrias - are an absolute travesty when Ai is involved. When sent to attack-move, they will fly head-first to the point selected, ahead of the rest of the army, ignoring enemies, ignoring allies in need of heal, and just kinda die there. The solution is obviously to not a-move with them, but AI does the same stuff too. When they send an opening attack wave with caladrias, the birbs will arrive waaaaaaay ahead of the rest of the army and just chill right above your town center, doing nothing at all and getting shot.
Caladria’s innate AI needs to be reworked for her to move in synch with army, to acquire targets along the way and react to them. Even if technically she lacks an attack, she does have an offensive action.
Norse overall - I feel that entire civilization lacks favor gen compared to the other 3. While the speed of upgrading and sprinkling myth units is somewhat in line with other civs, there is never a surplus or any kind of stockpile - every bit earned goes into something immediately, and losing myth units feels way more devastating than on other civs. I also feel that norse never get to recast their god powers because of the cost.
For the only civ that doesn’t gather favor passively, I feel they really don’t get enough from their raids. The whole civ also feels like a bad case of “win harder” due to it - you either get good engagements with kills to build up favor and prepare even better for the next engagement, or you run completely dry.
Freyr in particular - where other norse in my opinion struggles with favor gen, Freyr is flat out garbage with it. Thor has better hersir generation, Odin has better generation from cavalry, Loki just spawns myth units for free. Freyr has no compensatory mechanic like that.
His theme also feels redundant. I appreciate the slight focus on siege weapons and hersir, but otherwise he’s an infantry god with research and weird economy buffs - which is precisely the role Thor holds already. Who also supports hersir. Even their “non-infantry” minor gods overlap for 2 out of 3 ages. They both offer strong combination of berserker buffs - except Freyr’s idle berserkers looks like a meme. I can’t imagine scenario where that upgrade would be practical.
I’d really appreciate Freyr getting both an increased favor mechanism like the rest of the norse, and his theme reworked away from infantry into something more unique and interesting, not just “Thor but slightly different”. His ballista specialization is unique among norse. His other unique themes could be actual defensive focus (not just his one-time pig) and further hero support that would cover the godforsaken godis. Godi as a unit just gets no love whatsoever, and proudly sits at 0 unique upgrades available.