In short, if you're not skilled, don't be too picky. Just practice with what you have now and switch to something better later.
So, when Huangfu Yi used the iron rod as a skewer to eat the venomous glands and innards and refined them with the Five Immortals Sword Scripture, his overall combat power increased again. Once he unleashed his power, each finger of sword energy could carry three strands of poisonous breath. This meant not only could he easily cut through weaker foes, but he could also hold his own against stronger opponents.
However, after Huangfu Yi digested the Poison Qi, he quickly switched back to the Mysterious Lady Skill.
