Is there something bugged with Renekton since patch?

I feel that, since the recent patch, what originally looked like a decent balancing may have backfired. I think that RIOT should definitely check Renekton for a bug that might be spiking him AD higher than it should be, because I've had a couple of matches now where a Renekton will suddenly spike up to as high as 820 AD, and I don't see how that's possible. I'm just wondering if anyone else that Renekton's gotten a little TOO strong, on what looked originally like a nerf. Just trying to figure out what's going on, and get it addressed.