It's Really Fun! In this game you go through the tutorial and then they let you do what you want. So you go through the story and get more cards for your team and you battle other AI opponents. You get more cards of that person you want to level up and they level up. You spend coins, battle people to league up, and upgrade your warlord to become the best player with the best team! I got far by battling other people a lot to get better cards and then when I lost and wasn't strong enough, I did the story to practice and did other missions to level up and get a better team.

I looked it up and my Chromebook might be a Coral Sunset type computer.