AD senna is stil being played because riot has not addressed any of her core issues
#1) She outranges every laner in the game and forcces them to make bad trades or lose
a 600 base range with a range increase is only 50 shorter than caitlyn, then quickly becomes the biggest gap. Her Q target range is far too long for everything it does when it gets range beyond the target, as seen like Lucian.
When you couple Glacial Augment with movement speed stealing and stacking mechanics, when she hits you you can't fight back. The range is too long and the movement speed gap is too heavy
#2) Her kit is designed to auto win trades
% hp damage, healing, and free steroids from just Auto + Q is flat out better than literally any other AD can offer in such a short window. The only other stacking mechanic in the game that works from hitting champions is
, and he has to KILL creeps for the other half, meaning hes missing out on stacks if he harasses with it (Unlike Senna who has better stack drops when she doesn't kill creeps). On top of that, stacks give her literally everything an AD wants. Lifesteal, Range, Crit, whatever you want.
Her 'Wind up' is non existent, the feature is pointless if its so fast and still hits if targets walk out of range.
Her Q heals herself just for using it, regardless of whether it hits an ally or not. We've nerfed heal intense AD's in the past with
with Deaths Dance, Fleeted footwork as a whole etc. But for whatever reason Senna gets to do what weve repeatedly nerfed other champs not to do and gets a free pass for it.
We nerfed
from getting an insane amount of power from his items for virtually free while Senna just flat out has 20% extra AD, on top of all her other steroids.
Do you know what 20% AD is Riot? Thats about 40 armor pen, for free, right out the gate.
#3) Her Safety and power budget is far beyond any other AD in the game
Even if shes not as good in some aspects as other AD's are, her survivability and reliability make her an ideal pick. Cloaking herself and allies with a movement speed boost, stealing movement speed, healing herself and having insane range INNATELY without items makes her an extremely valuable consistent damage source. There's no reason to split that role with a second AD if you can just keep her unkillable the whole game.
#4) Senna could have 0 minion kill stacks and she would still be played as long as she gets stacks for trading.
Thresh has a similar mechanic and doesnt get stacks for trading, and the stack benefit is strictly worse. It doesnt alter his abilities, sphere of influence or overall power so extremely. As long as senna
Its astounding to me how youve stuffed
worth of free stats and trading tools onto one pick and wonder why shes only shining in a trading role.