Absorbing the Maxim and deriving spells was Merlin's absolute final resort as previously, the Maxims in Merlin's Awareness were under his control. Therefore, its absorption of the power of the Maxim would not cause any unusual changes.
However, this Flame Maxim was outside his Awareness, shaped like a gigantic Flame Subspace. The surging, spitting Flame Maxim could not be controlled by Merlin at all.
This was just like how it was easy to refine one's own Magic Power yet, it was of utmost difficulty to refine someone else's Magic Power to cast a spell, which was like a suicide mission.
However, currently, Merlin had no other choice, and could only make a tentative attempt. He hoped that the Matrix was strong enough to absorb the Maxim by force, just like how it had refined the god's divine energy in the past.