In short, under Mismagius's intimidation, the Lion-Headed Serpent Beast burrowed back underground.
Purple mist drifted out from the hole it had made, spreading across the ground directly above it.
Cofagrigus had been waiting outside for some time.
It saw the ground in the distance suddenly cave in, and the Lion-Headed Serpent Beast's lion head poked out in a panic.
Cofagrigus was immediately delighted and wriggled toward the Lion-Headed Serpent Beast—but with that seemingly gentle shift, it suddenly appeared before the Lion-Headed Serpent Beast like a bolt of lightning!
The Lion-Headed Serpent Beast had already been slowed by the restraints of Nightmare Space, as if trapped in a swamp. Seeing Cofagrigus move so quickly within that same "swamp," it was instantly horrified and turned to flee.
But Cofagrigus's shadowy tentacles had already seized its serpentine body! Cofagrigus did not take the opportunity to use its Ultimate Move, "Mummy." If the Lion-Headed Serpent Beast were turned into a Mummy, its movement speed would be drastically reduced, making it exceptionally fast within Nightmare Space instead.
Naturally, Cofagrigus had no intention of creating an opportunity for it to escape.
The moment it caught the Lion-Headed Serpent Beast, it used another Ultimate Move—"Imprison"—dragging the creature straight into its coffin!
Before the Lion-Headed Serpent Beast could react, it saw the coffin lid close from the outside, while the little energy remaining in its body began to slowly drain away!
"Death--!"
Cofagrigus cried out happily, then patted the coffin lid and used its Ultimate Move—"Iron Defense"—raising its 3,000 Defense to 6,000.
With the Lion-Headed Serpent Beast's current strength, it had no chance of breaking through 6,000 Defense and escaping the coffin.
Dark Demon, Enemy from Above
[Cofagrigus] and Mismagius had carried out their task perfectly. Unfortunately, Dark had no time to inspect the results for the moment.