A reason I think Riot's gameplay team understands the game worse than they did a year ago
To try and buff Lane Brand relative to Support Brand, they created a mechanic that gives Brand mana back when he softens the wave with a W and lets the adc last hit, but does absolutely nothing when Brand one-shots the ranged minions with W i.e. the primary purpose of a midlane mage outside of actual damage output in teamfights.
Every patch feels like it has some kind of backwards nonsense like this where Riot says they want to buff one aspect but the actual mechanics do the POLAR OPPOSITE of what was intended.