>>41059837Sylveon and Gardevoir received Mystical Fire.
Rotom got Nasty Plot.
Blastoise has Shell Smash.
Venusaur has Earth Power.
Roost has been removed to a lot of mons iirc.
Aegislash lost 10 BS in all stats besides HP and Speed if i'm not wrong, but also got Close Combat.
Kommo-O has a new signature move
>Clangorous SoulRaises all stats at the cost of HP
Vanilluxe has Aurora Veil (not sure if new).
Several olds mons can learn Solar Blade now (Sun should be better).
That's pretty much the only relevant changes i think.