What if Koggy's W range were passive?
Maybe all of it.
Maybe just part of it.
Either way, it would drastically improve Koggy's ability to be relevant when he isn't using his W active. Because Koggy is VERY irrelevant right now if he isn't using his W active. This would make the laning phase quite a bit less punishing for him, which would help a ton.
And just to clarify, I don't mean replace Icathian Surprise. I mean W would have a passive that grants some amount of additional attack range as you level it up.