Only recharge for Naruto's froggy , and monthly pack. Medal isn't really worth it but if you like to sweep your exam in 1 go and just have everything done a bit faster in game it can be nice. Like others said right now the game is just naruto 6 path online and he's the best ninja to get. Ninjas that work well with him would be shisui , edo itachi , killer bee, shark kisame. There are other ninjas that work also with him but these are the best ninjas for a buff type of team.