If Kog is going to be successful his sustained damage needs to actually be sustained.
When Kog's W is up, his DPS is comparable to Twitch or Vayne with their Ults active.
When Kog's W is down, due to being forced to build OnHit effects to have an impact on the game, he has the worst DPS of any ADC.
Due to the duration of his W, Kog is strongest in small skirmishes, but weak to both disengage and extended fights. Given that Meddler has explicitly stated that Kog's niche is supposed to be sustained damage, it makes absolutely no sense that Kog can't actually sustain his damage.
There are two ways to tweak Kog's W to preserve its weakness to disengage while at the same time allowing Kog to sustain his damage through long team fights.
- Make W refresh on takedowns.
OR
- Make W extend its duration each time Kog attacks an enemy champion.
With the ability to keep his W up for a whole team fight (provided he plays well) Kog would actually be able to fill his sustained damage niche in a fashion that feels compelling. Because let's be honest. If I wanted to pick a champion with a really strong burst of damage followed by lower damage there 
are 
lots 
of 
compelling 
choices 
.
is an insult to 
