Wind main is good in the mid game with her dance of impetus you can recharge gaara but If you dont want to spend you can get his frags in collect but he gives a barrier and buffs wind ninjas you can get Asuma from lv 50 elite instance for free he buffs every ninja and gives 20 chakara so you start off with 40 then there's Baki is the only one you might have trouble getting since he's in tendo and you might be wanting to save for kage and he's 80 frags to get so it might take a long time to get him I think A great replacement for him would be kankuro GNW from sign in or just shippuden kankuro If you have GNW Kankuro he also gives you 20 chakara 60 in total