User blog comment:B214/Question & Answers 5/@comment-31.57.87.86-20150601070101/@comment-24593185-20150608050640

actually it isn't jd more like the answer that issei found a power different from the Juggernaut. Juggernaut drive is simply power out of control, pure violence. And then you die

Which why illegal move triana and cardinal crimson queen was born due to issei searching for alternative power. Instead life force ther thing it's consume is stamina.

I'm sorry if it's confusing T_T.