u/Atlas_the_t1tan

Does anybody remember an old Tommyinnit fanfic on Ao3, where like, him and a few others were almost a magical girls where they had wrists bands or maybe a nail that let them be super powerful? Like, I believe there was a TV thing that made an announcement about them making Tommy run from sbi. And theres two floating cubes that kinda act like the incubator from Madoka Magica. And theres like a dramatic chapter where one makes a pact with the cube for one of them?