I just tried in the direction I sensed you last, oh well...
Spews Swarms of Contagion from Venom Edge in random directions
Swarm of Contagion - A dark wind that carries millions of strains of lethal diseases. The bits of dakr wind form together to create "shards" of wind, condensed air flows that slash and cut like blades. These shards pierce and slash you as they pass, injecting you with strains of disease that will kill you in 3 turns (9 posts) if you don't resist or cure them.
Demon/Dragon Hybrid Immunities/Advantages -
Poison/Venom/Acid, Fire/Heat, Electricity, Regeneration, Blindsight (darkwind, see previous posts, ineffective vs cloak), Natural Poison, Combustion Claws, Hair Growth/Shedding, Wings
Weaknesses -
Unknown, you'll have to find out the hard way