This is where all the bosses on the level
fears. The Reaper.
With the power to slice any enemy with
one shot and smash through door like butter is a creature to
worry about. But the good thing is that he is on your side.
I think his health is refreshed by your
mana and he uses a lot of it. The more mana you have the longer
he will be on your level.
If he gets a little hot to handle one
slap will make him run away from the dungeon. Or exit.