The giant black wolf was the guardian spirit of the fourth floor. It was comparable to a Fourth-level Spell Caster. Though the three Spell Casters earlier could have defeated the giant black wolf alone, it still looked rather difficult. It took them quite some time to defeat it.
Moments ago, Merlin also watched their attempt at the side. Hence, he had now grasped the giant black wolf's characteristics. It was fast and had a strong defense. Even if it was attacked by a Fourth-level spell, it could still take it. It was quite a tricky opponent for a typical Third-level or even Fourth-level Spell Caster.
"Quick speed? Strong defense?"
Merlin grinned. These characteristics of the giant black wolf could almost entirely be restrained by him. On speed, Merlin had Flash Wind, which was incredibly fast. On defensive power, Merlin had Pandora Demon Ability, Fuse Earth, which was incorporated into spells. It was capable of withstanding the attack of a Sixth-level spell.