Bang!
Grey and Instructor Blake were sent flying.
Reynolds' Elemental Warrior was destroyed by a single attack from the Sage Plane corpse.
Alice, Klaus, Reynolds, and Instructor Delia continued flying as Grey and Instructor Blake tried to hold back the corpse.
The trap array Grey set up was already exhausted, but it was unable to do any significant damage to the corpse. Other than slowing it down for a few seconds, it didn't amount to much.
This goes to show the strength difference between an Overlord Plane Elementalist and a Sage Plane Elementalist. Even though the corpse wasn't at the original strength of the person while alive, it was still too much for the group who were still in the Overlord Plane.
"Get back, I'll try to stop it. You are its target," Instructor Blake pushed Grey back after standing up from where they crashed.