Can somebody explain why Assist KyuB was so popular anyway? I haven't played BH for a while so I never got a chance to face it. Belly Drum Slaking seems to outclass it as the physical behemoth. Skill Link KyuB is still one of my favourites to use though.
Perish Song looks like the best counter to Shuckle. Something like Celebi could Perish then u-turn into something gimmicky like Life orb + Sheer force KyuW (with sub of course). I'd like to try Shuckle myself. Gira-A actually felt quite underwhelming when I last used it, and its typing really hurts too. Haven't used it since.