The dire skull of ahamkara is supposed to return super energy on Nova Bomb kills, however, it is working very inconsistently at the moment. The video shows me throwing a Nova Bomb on a lot of ads, and not getting back any super energy at all. From my own observation, the more kills you have gotten with Nova Bomb, the more likely it is not returning the energy, and I also have an assumption that if you get too many kills with one Nova Bomb where it's supposed to return the capped amount of super (which should be 75% if I remembered correctly), it just not return. This bug makes the dire skull VERY unappealing to use, please consider fixing it.