yea before you could buy them each event and save them if the rewards were not what you wanted.

kazekage gaara and summit temari are both quite powerful especially on wind and earth teams. gaara starts combat with a barrier, that buffs wind and earth ninja. no need to cast it like the other gaara. and he shields 2 per round instead of one. temari buffs wind and shields both wind and earth. as for B he is good with nine tails naruto, making for immortal team setups.