this form is achieved by putting more ki into SSJ2 and controlling yourself and your ki. It looks different from SSJ2 by making the lighting in the ora surround you and making it act as a shield. Its main increase is adding lots of durability. The shield's limits are if a ki blast that has a multiplier of at least 2 the shield will be surpassed but the moves power will be reduced to the level of a normale ki Blast. So basically every moves power multiplier is subtracted by 2. And if you punch it or kick it you will be shocked.