One of the most pitiful mobile games when it comes to a rewarding experience. Beyond the franchise, it is nothing more than a grind, and a tedious, unrewarding one at that. Arena is a refresh simulator, events give SR cards and characters that sees little use or purpose, tower is just an artificial difficulty galore and a pain to attempt 3 times a day, AND lootboxes and pity system are just abysmal but not that it matters since getting gems here is like finding a needle in a haystack.