Fists
Blood seemed to endlessly drip from Ryu's body. Anyone else would have likely bled out by now, but the vitality of Ryu's various bloodlines could hardly be matched. Unfortunately, no matter how high his vitality was, there was little he could do about his organs shutting down.
Even the greenery of the Mortal Qi Small Realm which were used to growing back as quickly as they were cut down couldn't fight against the aura of Ryu's Qi Blade, and they had only been affected by its domain rather than by it directly. Ryu, however, had been directly struck by his own blade. His situation was far worse than the sliced forest remnants around him.
With what seemed like the last of his strength, he summoned every corpse puppet he had out from his spatial ring. Since his meridians were barren of qi, and his body was far too injured to even think of making use of his Body Realm to fight, the only option he had left was his Mental Realm.