User blog comment:Mich, Michele & Kuhla/Future Units Preview/@comment-27362456-20151226232215/@comment-86.141.92.133-20151227201903

actually first there is the paris extra trial then it's gradhens and owen.

as the OP guessed the reward is a  15%stat boost+effects orb for paris as fror owen and grah trial it's the evo mats for 7* and owen's sphere