Galio's scaling
Galio's damage was reduced by 10-30 (based on level) across the board.
Rod alone more than makes up for that before any time has passed.
They nerfed only his level 1-4 effectiveness in exchange for 60% more damage in his kit. Though with the buff to his passive, even that isn't nerfed if you bring AP runes.
I like playing Galio, but it's complete nonsense to slap on buffs to every single ability all in one patch.