I just got carried by a bard top lane

What even is this? how is this real?? http://i437.photobucket.com/albums/qq92/narvuntien/Bard%20carry_zpsyqsi9iq0.jpg

Also this was an epic game where the enemy team spent most of the game inside out base and we just barely fought them off the nexus twice. But they just couldn't win a teamfight despite crushing every lane.

Is OP?

p.s I did for most of the game have a sightstone but I sold it before the end.