Why does Warwick always seems... OP?
At first I just shrugged this off as perhaps people just aren't using grievous wounds items... then I realized the only grievous wounds item left is Morello, an AP item, and only when they're below a certain % of health, which means Warwick never gets the grievous wounds. I think it's safe to say that, when your entire team needs to get ignite just for Warwick, perhaps Warwick might have a little bit too much sustain, and Skirmisher blade + any other on-hit + Warwick ult = enough damage to one-shot a non-tank.
Just so people know, Skirmisher Blade after smiting the champion basically puts a mark on them so that every time you hit them it does true damage, so it's the perfect storm for WW after he smites he ults them and that hits them a ton, adding a lot of true damage. How does it make sense for someone as tanky as Warwick to also have extremely high, sometimes the highest, amount of damage? You need to follow the principles of balance Riot. If it's Fast and Cheap, it doesn't hit hard. If it's Fast and hits Hard, it's got to be very expensive. If it's Cheap and hits Hard, it can't be fast. Obviously Riot is not following any of those principles, since Warwick is Fast + Cheap + Hits Hard, gg.