isthmus
Warlord
More sentient golems for the late game sounds like a good idea; if it can happen once, it could happen again.
You could possibly link it to enchantments, as a new "learning golem". But as for barnaxus himself, I thought that the fact that he contained the divine essence of a god (even if it's just the breath) allowed him to awaken...with the help of the unnamed man who awakened him in the wastes. (guess who that could have been...)The rarity of awakened golems is why I'd have it only on tier4 units, which are both naturally rarer (limited) AND made of better materials, better able to hold the enchantment.
Is it possible to repeat this?
...At least lorewise, although you could say that late in the tech tree that golem creation would be developed enough to be at least creating the image that golems "learn".
You could easily do the same with their mage units (have the "modifications" they can give be based on their spell promotions) that or totally replace their mages with tinkerers. Also because they gain XP from the golems, they don't need passive XP gain as much.
Also the mithril golem would probably be a good candidate for "sentience".
But I think the name "Children of Barnaxus" would be an eloquent name for other awakened golems(perhaps the promotion...). Also perhaps the number of Golems that can be awakened at once could be related to Barnaxus's level, giving more motive to keep using him. Barnaxus could probably be given some upgrades later, so that he doesn't become too obsolete as a combat unit.
I definitely agree with barnaxus upgrades. He's such an early hero who is obsolete very quickly. For the "perfect" golem he needs to have a little extra, it wouldn't be too strenuous on the lore to say the he lost much of his capabilites during the AoI and is restored to full function as the tech tree develops, I think?
The mage replacement UU.. less so. Although I can definitely see where you're coming from, I'd prefer that they were their own UU and utilised some of the perceived "useless" techs that the luchuirp have. I think that golem crafting isn't fully justified into solely the arcane line. I'd like to see tinkerers as on a hybrid machinery/arcane line.