Wow, cool OM!
Adding some thoughts:
Slaking & Regigigas get Entrainment.
All Normal-Types get a combination of Lovely Kiss + Mean Look + Shell Smash/Belly Drum + ExtremeSpeed. Talk about scary.
Head Charge outclasses Double-Edge as primary physical STAB (Mega Kick has no recoil, but only 75% accuracy).
Tail Glow Speed Boost Yanmega will be scary as well. Yanmega can use it's ability to go for a faster SpA boost in Tail Glow rather than to use Quiver Dance.
Forretress can now use Heal Order for reliable healing, giving it something to counter the big distribution of Rapid Spin now, altho all Normal-types do get Recover.
Kyurem-B's Ice Shard will be a priority move to take into account, not to mention it's access to icicle crash. It also has access to Dragon Dance now D=.
Bulky Psychics (Latias, Jirachi, Claydol, Uxie, Slowbro/king,...) can now utilise the Stored Power + Cosmic Power set which makes Sigilyph so annoying.
RestTalk CM Suicune with Water Spout.
Gyarados gets access to Aqua Jet & to Brave Bird/Acrobatics (lol) on the offensive side and access to Roost for defensive play.