Way too many characters being added to the game every few weeks. It is impossible to build and develop your roster when the devs keep changing the meta up every time a new group of characters are announced/released. Unless you spent a DISGUSTING amount of money to build your roster, you will never catch up to the playerbase. This game regularly has $50+ offers for sale for a paltry amount of character shards, and there's no way to farm as a FTP for a minimum of a full year. Greedy Devs.