At the beginning of his fight with Robio, Kruxe;s one weakness had been his genkai.
Until the the B rank, a seeker strength was normally accessd based on just his genkai and by this standard Kruxe was still an F rank seekr and with such ana accessmenet, it meant that he had a rather weaker genakai and lower quantities of it.
Though Kruxe's body could unleah thunderous strength and destrictive hits, when pitted against the lieks of Robio that could spit out and summon fire, without genkai to protect his body, Kruxe was abut a duck waiting to be cooked.
After transitin frim yusign genkai to using darkness energy, Kruxe geanki weakness had been comolteyel abaolished and now he seemd like a =n unstoppable monster, but that was far from the truth as givene eneoigh challendges a new weakness would appear.
