I liked Viktor because he is one of those underrated champs that no one plays, like Xerath. I liked how whenever I play Xerath or Viktor, most wouldn't know how they work, how strong their burst are and etc and I like to use that as an advantage.
Currently, I noticed that Viktor suits better as a burst champ, but he is the exact opposite of Xerath where his kit rewards you more the closer you are to the enemy and a kit like that also punishes you heavily in a game where heavy damage gap closing bruisers like Vi, Rengar, Khazix reign supreme.
He is fine in lane but during team fights when he needs to be close to deal damage, thats where he gets 2 shotted by the enemy top or gets CC locked by jungler.. Also, his 2 other augments are pretty useless imo. Gravity augment is meh and Death augment is basically all you needed.
I could be wrong, still learning him then after mastering him at some degree, ill go learn Syndra
ALSO, the other reason is because he is part of the glorious evolution and the Dark Harvester skin sounds interesting