[CP Negatives]
CP negatives apply per jutsu, each round. The minimum cost of a jutsu is always 1, and the MAXIMUM CP negative that can apply to any single jutsu is -5. (E.G if you use a B rank that costs 8 CP, the cost can not go lower then 3 CP. If you use 2x A rank's in a single ATK round that cost 12 CP and 13 CP, they would cost 7 CP and 8 CP respectively.)