How do you deal with a Lycan?

so today ive had about 4 or 5 games against a Lycan, all of which my team ends up feeding and every game the lycan ends up having 0 deaths and a fuck load of kills, literally carrying his entire team to victory.

How do you deal with him? I know you can counter him early in the jungle but theres gotta be a way to deal with him once he gets his items too, if not thats just OP and bad design.

Edit: and for the record i dont feed him early game, usually in the games vs a Lycan i carry early game then when mid-game rolls around he just BKB's and slaughters half my team with no-one being able to stop him.