EU LCS Xerxe Warwick
Early Game: gets that Tiamat as soon as possible to clear camps but notice that he doesn't complete it into anything the entire game, because really he just needs it early to help jungle clear. Mid Game: Using his ult to initiate in teamfights is bad. Don't use ult to initiate fights. When Warwick gets below half health he can be bursted. Using his ult to prevent enemies from escaping skirmishes is good. The right use of ult.
Runes: Cooldown reduction and he builds cooldown in game. This is better than the old attack speed builds. Keystone: Fervor??? he doesn't build attack speed (Bloodrazor, Bork is old build). So why not go Courage of Collosus?