Hi!

At level 50 you'll be able to collect some summon from the map, for additional chases. Guren is a cool ninja at the start and works really nice with water main being position one. Here's a team example :

Later on, you c*so change Sakura or Kabuto with Kurenai for example.

Hope that helps!

THX man. That's the nice lineup. What should I go for later? I mean treasures? So maybe regular kissame>???

You should focus towards the Great Ninja War treasure to acquire overtime one of the super rares. You can as well draws for Roshi before you do that. He is a solid ninja and will give you some more options. I‘d suggest you to focus towards Six Paths Naruto and Edo Itachi from the events, as these two are awesome ninjas at the moment.