"Roar!" With one furious roar, upon discovering those undead, the Hellfire bellowed and lunged directly towards them.
Just as they approached, under the effects of the Hellfire's ability, the souls of those undead began to burn incessantly. Although given the strength of those undead, it would be hard for the abilities of the Hellfire to kill them in a short span of time. However, if those undead were not to take any actions, they would inevitably suffer damage given the abilities of the Hellfire.
Would those undead allow the ability of Hellfire to act upon them indefinitely?
Apparently, that was absolutely impossible.