I can Transform Infinitely

You kill a demon and absorb its demonic aura. You convert the demonic aura into Qi and blood, and your Qi and blood become vigorous. You accidentally meet an expert of the Ghost Dao, and you get hit by the Yin Wind Palm. You convert the Yin Wind Palm's Yin Qi into Qi and blood, and your Qi and blood become vigorous again. You start to practice cultivation techniques. You practice the Blood Ignition Technique, which is related to Qi and blood. You have an endless supply of Qi and blood to use.