It's just okay
It's okay for a mobile game but skills are dished out in a gacha system and to roll for skills you need gems and while you are drip fed gems, the rates to even get a skill in the weapon you use is pretty low. I use the sword and have rolled about 5 times recently and haven't even gotten a sword skill at all. If you buy the currency it is about $25usd for 1x roll which is outrageous. game for giga whales