Am I the only one who thought Skolas was the most brilliant enemy in Destiny? Before Oryx he was the first enemy to take Vex technology and use it to his advantage. I'm pretty sure he applied it in PoE as well. Plus he's a brilliant tactician. After learning more about him via the lore, Skolas was both strong and smart. When trying to become Kell he fought one and knowing that he'd lose the second fight, tricked one of the Queen's paladins into fighting for him. Skolas is probably the best villain in Destiny history solely because he's a brilliant battle strategist and he's the only one of the 4 main bosses that isn't a god.