League of Legends has had a mage invasion on bot lane, with even pro players preferring to select mages over marksmen in their designated roles. This was caused by their ability to clear waves while the support roams, and bully potential against low magic resist marksmen.
Riot decided to step in and finally fix this, while also bringing some of the non-meta champions up. You can read more about the mages and how Riot fights them here: LoL Patch 26.16 buffs ADCs as devs move to curb rising mage bot meta.
