Which champion do you wish you'd approached differently in retrospect?
Lux.
Lux is in a tough position in the lore, because she is a mage that lives in a region that hates mages. Because LOR is focused on region, we had a tough design problem of making a powerful champion mage, Lux, in a region that would not be focused on spells or magic. And in fact, one of the region's core pillars was to be effective against spells and magic.
All of this is exacerbated by the fact that Lux is extremely popular and everyone has high expectations for her and her execution.
I think we did a pretty good job and I definitely wouldn't call anything we did a mistake, but it's a tough problem and I think if we had waited on Lux we may have come to different executions that may have lead to Lux feeling more supported and having a better fit holistically within her region and the game overall.
All that said, I do think Lux's place in LOR has improved over time and I'm really excited to see her role in LOR develop over time.