You see Undead Dragon
"FEEEED MY ETERNAL HUNGER!".
Notes
New creature in the Winter update 2006.
Abilities
Summons up to 4 Bone Beast.
Damage Taken From Elements
Physical 
Death 
Holy
Ice
Fire
Energy
Earth
Location
Strategy
It will probably use attacks that have the same range as the Dragon's Fire Wave but with other elements, your best bet would be to use SD or HMM or possibly! exevo mort hur, as this beastly being also summons bone beasts, both arn't immune to energy and physical attacks.
Loot
0-? gp, Platinum Coin, Torn Book, Blank Rune, Broadsword, Demonic Essence, Soul Orb.