Scarf Braviary is pretty cool in RU.
Anyway let's discuss these 'mons:
I've seen so much shittalking about nape on the viability ranking thread, so much discussion has gone on about it, whether for or against moving it up. I mean this pokemon is so versatile, with sets ranging from SD to NP to defensive to mixed and even to lead, and apparently versatility plays a VERY big role... and considering nape has 104/104 mixed attacking stats and a lot of 100+ BP moves (flare blitz, close combat, gunk shot, fire blast, focus blast, grass knot) plus priority in mach punch vacuum wave and fake out and some tools in taunt, WoW and even slack off, it makes for a good pokemon imo. 108 speed also isn't that bad since it outspeeds most Pokemon seen commonly on balance/stall. However even the defensive set isn't all that bulky, and considering it's so easily revenge killed by Lati@s, azu, talon and daunt, I don't see why so many people are overrating it that much.
Mega Diancie is also something that needs some discussion imo cuz I barely see her on the ladder. People seem to prefer other megas such as Meta, Sableye, Lop, Altaria, Scizor, Venu, Zard X/Y and Garde, but forget about Diancie. It sucks that she has to rely on Protect to mega-evolve safely and she's also easily revenge killed by Azu and Scizor (hell even CB Talon's Brave Bird 2HKOes her after rocks), but I don't think she's that bad... between AoA, RP and CM plus 160/160 attacking stats and 110 speed, she can leave a mark on balance/stall too. Magic Bounce is cool too cuz it bounces back rocks and taunt and unlike sableye she has some offensive presence from the get-go