You see whirling blades
Abilities
Melee (0-1400)
Berserk (600-900)Damage Taken From Elements
Physical 
Death 
Holy
Ice
Fire
Energy
Earth
Location
The Dream Scar when Malofur Mangrinder is fighting.
Behaviour
It doesn't move and uses its Berserk almost every turn. Whirling blades never retreats.
Strategy
Simply stay away from it. From a distance, it's harmless, but in range it will constantly deal high damage.