Blue Build: being covered soon, I didn't want to steal another writer's thunder
Executioner's Calling: clearly situational
Black Cleaver: On MF, it's strong
Youmuu's Ghostblade/SotD/Zephyr: I'm only covering 4 item builds because most solo queue games aren't going to go to the 6-item mark.
Hurricane: I regret my hype to this item. I thought it would be strong, it turns out to be too impractical. Perhaps some team will find a way to use it well on Kog. I really hope so.
Trinity Force: You may notice a common theme; Corki feels too weak to be largely playable. Even Cop doesn't spam him like he used to.