Garen, Akali and Katarina. I didn't really understand Akali being new and not having a rune page for her also hurt. I got her because I saw my friends getting carried by her in a 4v5 game and she was doing what Akali normally does when she gets fed. --- -_-
I bought Ashe, Master Yi, and Ryze at the same time, because every other 450 champion was boring IMO.
Then I got Katarina, who I refunded so I could buy Talon. To this day, he's one of my mains and probably the only champion who I got to master. --- The official GameFAQs Champion. "Why? because I can." - Katarina Du Couteau