You see a butterfly
Notes
It is a quite rare butterfly.
Abilities
None.
Damage Taken From Elements
Physical 
Death 
Holy 
Ice 
Fire
Energy
Earth
Location
It can be seen in the basement of the Mad Mage tower in Edron, here. It seems to be one of his experiments.
Behaviour
Flies around the room where is locked in. A butterfly will retreat at 2 (100%, full) health.
Strategy
None, you cannot reach this creature.
History
This creature's data was implemented on Christmas Update 2005. However, its first spawn was added to the game almost six years later, with the Summer Update 2011.