anyone wanna play full pentakill skin team :0

Why not Morde ADC, Karthus mid, Sona support, Yorick top lane and Olaf jungle o.O Just a thought. I sadly don't own any of the pentakill skins though.

Olaf is actually more of a fighter than a tank. Not to mention he has true damage(up to 250 BASE). Yorick could likely get more kills than Morde in the bot lane, and you could swap them since if you had a Morde in lane you'd be going double relic anyways. They'd both be getting more gold together than any other bot lane duo anyways thanks to that(Plus the level advantage). Plus bot lane if you were facing someone like Jinx you could just steamroll her with a thornmail rush after getting targon's. I've done it plenty, it's pretty annoying for the enemy team. Plus Thornmail kinda got a huge buff since every armor item in the game had it's armor upped and it's HP lessened, which means more damage from thornmail.

These are just suggestions though cuz I guess Sona COULD ADC, but I can't see you wanting to ADC Sona since her heal would be pretty useless to the team and her abilities would be pretty mediocre outside of her ult, and she'd mainly be ulting for herself(and it has a cast time that goes into the time they're stunned as far as I can tell. With Sona mid you can kinda get around this since you're using your abilities more than your autos with the exception of the ONE empowered auto).