Azaroth saw exactly what the monster was doing. The defensive mechanism that was moving is sometimes simple, but what made him hesitate was the wide-range ability that the monster used when it was hunting.
'Can't it use the wide-range attack because we are fighting it in close combat, or there's another reason?' That's why Azaroth was waiting to see if it was going to pull a new trick out, but the monster did no such thing. And so Azaroth smiled. "I don't like tricks unless I'm the one doing it!"
From what he observed, the slimes that surrounded it made it able to kind of slide around space. To ordinary eyes, it'll look as if it was there now and wasn't the next second.
The only way to defeat this is to block all the places it could slide to and finish it off. He has to do this and forget about its wide range of abilities.
"Begin to close the circle," Azaroth said.
