Incinerating Fire was a Fourth-level spell that had a hundred percent compatibility with Merlin's previous spells. As for Fiery Collapse, it was a powerful Pandora Demon Ability.
Merlin now had a slight understanding of Pandora Demon Abilities. This mysterious and formidable power did not have to be specifically under certain spells but compatibility!
This kind of compatibility was virtually the same as the compatibility between spells. There was also compatibility between Pandora Demon Abilities and spells.
For example, it was absolutely impossible for Glacial Finger to be compatible with Fire-type spells. They were basically two different Elements and two different powers.
However, Glacial Finger could be compatible with Ice-type spells. Certain Ice-type spells had extremely high compatibility with Glacial Finger.
Therefore, with high compatibility, the Pandora Demon Ability could be successfully cultivated.
