He didn't pin his hopes on the fire attack at all, but on the demonic series attack. Even if Huang Yi activated his magic immunity skill, gaining immunity to his fire attack, he could not defend against his demonic series attack.
Although both demonic series and magic immunity contain the word "magic," their meanings are different. The "magic" in demonic series refers to The Seven Archdemons and the Demon Realm, also known as the Dark Attribute, while the "magic" in magic immunity refers to magic elements such as fire, ice, thunder, earth, and various other magic elements.
Huang Yi's magic immune state couldn't block his demonic series attack at all!
