5s is mad fun yet highly unbalanced, personally i think they should give titles back to 5s but it would be unfair since 5s is just as broken as 2s. However, you can still get title Arena Master (2.2k achiv from 2s,3s, and 5s), it will take you some time to grind it but it is very fun and easy till you hit 2050 cr+ when you get 1-2 points per win or face multi r1 that does 5s for streams (but if you beat them on stream, extra brownies for u sir)