So blank, i see you looking here, and i was just thinking while watching your replay:Wouldn't it be best to run an intimidate user or two in there? That way, if you see priority users in, you can switch in the intimidate user and soften the blow. (Won't work with metagross, sure, but it will for everyone else)
If you run two, you can switch from one to the other, so it's always an option, but of course that might be too big a strain on teambuilding. You could always run gyarados, maybe with some SpD to absorb water attacks, and replace toxicroak with it. With DD, it could still boost, although it wouldn't be as good as toxicroak at defensively boosting. On the other hand, it'd have boosted water attacks. You could also run an intimidate quilfish for that-it's got some cool options in T-spikes and pain split, as well as STAB Poison Jab.
Also, why zen headbutt on scarftales? It doesn't hit much harder, and while the lack of recoil is probably nice, i don't think you'd be using it too often. Maybe replace it with a status move? It sucks being locked into, say, Wow, but no less so than Zen Headbutt. Or you could run Fire Blast, to hit a physically defensive opponent hard (Not sure there's much call for that, though)
Edit: Well that's fine, but why not cut quick attack? Is there really a point to having it on a scarf set? You're only outsped by faster scarfers in any case. And you could burn him too, if you wanted
Also, penguin, i didn't pay that much attention to tailwind, but... maybe that was why?
Double Edit:If he brought in scarf cloyster earlier, whimsi would've just stun spored it, so that explains that.