Good luck if you are F2P

It is a very good game but once you get all the dragon stones from the quest it becomes impossible to get more and summon more characters.
Also if you want to purchase stones, they are super expensive. The stones are so expensive that you can purchase a PlayStation or Xbox game instead of buying a 91 stone pack (1 multi summon, 5 single summons), so choose wisely.

Mobycockk about DRAGON BALL Z DOKKAN BATTLE, v3.3.0