Turning into an unending Farm fest

Every day it feels like they add more unobtainable monsters to collect that I just add to the list of things I wont achieve in the game.

Drop rates of monsters keys to evolving other monsters are so low you can farm for hours and get only one or even NO drops of keys monsters.

The puzzle part is fun but go play Candy Crush if you want that; this games not worth it.

Bobbert snotgrass about Puzzle & Dragons (English), v9.6.0