In the little "did you know" things on the loading screens, it says Garen is the one who rules over Demacia. So where does that leave Lux then? In the splash art for Elementalist Lux, we see her in this brightly lit throne room, and in her trailer, she's standing in the ruins of said kingdom. So if God-King Garen rules Demacia, what kingdom was Lux ruling over?
SKINS** ARE NOT** CANON ! They take place in an alternate universe..if you want to learn more about the actual position of lux and garen in demacia hierarchy i suggest you to read : https://universe.leagueoflegends.com/en_US/story/champion/lux/ and anything related to garen and lux really !
Skins are not canon to the actual storyline of League. That said, they make for interesting "what if?" scenarios.
God-King Garen is an alternate take on the character that doesn't really have to do with his normal place in lore or personality. It's actually sort of a hyper-inflation of his worst traits, a desire for order and justice leading to tyranny.
I'm not sure how Lux would fit into that universe, but if we're assuming it's based on the same sorts of principles, and Garen's still suspicious of her magical leanings, his God-King incarnation probably would have tried to kill Lux, and possibly succeeded. If not, she's probably in hiding, since I couldn't see even a distorted version of Lux being fully on GK Darius' anarchist side.
I had a game earlier where God King Garen and Elementalist Lux carried the hell out of the team, to the point that all chat Team Rocket Inspired trash talk started to come out naturally on its own.
Also, i'm still waiting for Garen's lore update where he's revealed to be an enormous arcane prodigy like Lux.
Garen = Runeterra's most powerful wizard must be meme'd into existence. I mean, he strikes you with a fucking orbital canon in the shape of a sword because he saw your health was below 35%. Imagine if he had actual training.
The air kingdom. If you saw from the lunar event .. it has its lore of past times in runeterra.
