Hegemon Sky-breaking Sever (覇王空破断 Haō Kūha Dan) is an attack used by Einhard Stratos in appears in::ViVid. It is a shockwave attack that looks like the palm variation of Unchain Knuckle, and is classified by the DSAA as a "body-strengthening strike" (身体強化打撃 shintai kyōka dageki), although it is in substance a cross-range [[:Special:Ask/-5B-5BCategory:Spells-5D-5D-20-5B-5Bspell-20category::-5D-5D-20-5B-5Bspell-20type::-5D-5D|shooting attack]].