In the beginning this game struck me, it was fun, engaging and with amazing art and characters, I even paid for a couple of characters, but after a while OMG the difficulty curve turns steep as hell and the game becomes a fruitless grinding nightmare, even if you participate in live events, the regular campaign is unplayable if your characters are not strong enough, but you can't upgrade them because you need to grind 500 of an item. It's sad because as I said the game has a lot of potential.