Something’s Amiss
The Demon quickly figured out the reason for his power failing to take effect. The command he had condensed was for the door seal to be nullified.
Since the power of the seal was greater than his, it meant that his command couldn't be executed, which meant that it wouldn't even take effect. Therefore, it was just a waste of mana.
Thinking of something, the Demon condensed another magic circle, "The door seal loses a quarter of its strength!"
Boom!
The command took effect as it was within the range of his power. Smiling as a result, the Demon spoke, creating a third magic circle, "The door seal loses half its power."
The door seal had become weak now as he unleashed the final command, "The door seal is nullified!"
Boom!
The door opened, revealing an expansive space within where large pillars stood tall, almost reaching the skies—that was how they looked.