Cheaper, there is no reason for her to be overprice like those speacial like playboy sasuke, sailor sakura and swimsuit ino I assume.
I think she can be buy and use at 30 fragments because she is GNW type of ninja after all.
Also we don't know which exact version she gonna be when they sell her. Because it's seem to be 2 version of her, maybe buff/nerf in the future involved. One has battlefield cd and one has no battlefield cd.
If they sell the version that has battlefield cd. I don't think she will be OP, at least not right off the bat because she can be diedededed when she is able to cast her mystery.
Her skill require 60 chakra btw. So for a normal team she can only cast mystery in round 3. For a team that can increase chakra then round 2.
But if it's no battlefield cd version then RIP the other team :lol