AD vs AP balance (IEM Katowice)
Watching the semifinals today and also previous group matches I've noticed a trend: they almost no longer pick a dedicated AP carry and the team that picks an AP mid lose most of the time. The matches outcome is also relative skill related, but still, it's AD champs all over the place with some hybrids or a little mix of jungle/mid AP champions purely for utility (e.g. Lulu, Gragas). While there are some AP champs that are strong and even somewhat oppressive in soloq (Lux as a primary example), the AD-AP balance seems screwed.