Pokemon Center 2018 Beast Ball with RANDOM Ink Stamper & Candy. It was only sold at the Japan Pokemon Centers for a very limited time and in very limited quantity, in February, 2018.
The Beast Ball opens up and there is a RANDOM ink stamper (It will be either Xurkitree, Phermosa, Buzzwole, Nihilego, Celesteela, Guzzlord, Blacephalon, Poipole, Stakataka or Kartana).
NOTE: The ink stampers are randomly inserted, so you CANNOT choose which one you receive. The Poke Ball can also be used for cosplay as its a good size to fit in your hand or you can store small items inside it. It also comes with 6 pieces of soda flavored candy.