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Lucario got a lot harder to stop.
Salamence and mega Salamence got more coverage or recovery or boosting, depending on your style.
Chansey has more utility now.
Wish-protect got better since you have another moveslot open between those two moves. By extension, all the bulky Eeevee forms (Umbreon, Sylveon, Vaporeon) get better.
Scolipede can run something like Substitute or Protect-Swords Dance-Iron Defense-Baton Pass-Toxic Spikes and set up hazards while boosting for your sweeper. Alternatively, you could give it Megahorn so it can actually fight while setting up too.
Rest Talk got less consistent, but leaves room for another coverage move. Crocune with extra coverage means he can get around Water Absorb now.