Granted, they add 5 new Pokeballs:
-The Level 1 Ball. Guaranteed catch on Pokemon that are level 1, but it functions as a normal Poke Ball otherwise. Shame the lowest level wild Pokemon will be level 3, huh?
-Toxic Ball. Better catch rate on Pokemon that can learn Toxic. The ball's design is nothing but a mish-mash of quotes from the world's most toxic people. It also insults you and lowers the stats of the mon caught in it, whenever you send it out into battle. I hope you and your mons have a thick skin.
-Rage Ball. Increased catch chance on the turn AFTER you inflicted physical damage on a wild mon. Causes the mon caught in it to be in a permanent state of rage. It will not listen to your orders and it hurts itself a little with every move it makes.
-Sky Ball. Increased catch chance on Flying type Pokemon. Sends them flying high when sent out. Forces you to be unable to do anything other than wait for two turns as your Flying mon comes back down. Any non Flying types potentially caught by the ball will just plummet to their demise.
-Birthday Ball. Pretty much just acts as a normal PokeBall, but has a confetti effect when the mon in it is sent out. You only get one per birthday.
I wish for a Sandstorm form for Castform