gangplank is too versatile
giving him waveclear was a gigantic mistake.
its like playing against 
youre constantly held hostage in lane by his ability to waveclear and push. meanwhile hes still able to contribute to fights across the map.
hes incredibly hard to shut down even when behind, due to the safety of his ranged farm/waveclear and bonus gold generation.
maybe its time to think if his ult shouldnt be changed from global to limited range like
or
. or remove his ability to apply on hit effects to his barrel explosions to tune down his waveclear.

is kinda the cookie cutter build.
or you just have to accept that he's going to free farm and get global kills/assist with his ult
it's fucking freelo.