I'll start:

-Acid should be the Poison type equivalent to Freeze-Dry, as in it would be super effective on Steel types, since acid erodes metal and all. Maybe a damage boost to 70 would make it a little more useful too.

-Kyurem's signature move Glaciate as it stands just seems like a glorified Icy Wind. The idea I had to make it more "legendary" was to get rid of the damage and reduce the accuracy to 75% but make it guarantee a freeze on hit. Granted that would be broken on anyone else but as it stands there's nothing really legendary about that move.

-Physical fairies such as Snubbull and Mawile are a real pain to use during playthroughs because of the lack of mid tier Fairy moves for using while leveling up. Maybe Comet Punch and Covet could be changed to Fairy type to round out the amount of physical Fairy moves.

Edit: Another thing that I forgot to mention is that I think that Hex should be physical, not only does there need to be more ghost type moves but it would make M-Banette way more viable and help out Acrobatics Drifloon as well.