Venomdust

Venomdust was a spell that could only be cast by dragons. Dragons often used this spell to protect their treasure hoard.

Effects
When cast, the spell created a small mass of dust, about 's worth. This dust was incredibly poisonous. The dust was sticky so it could be applied to an object. Exposure to the dust, by touch or ingestion, was usually fatal to a humanoid. The dragon was immune to the dust's toxic effects. The presence of the dust could be detected with a detect magic spell, and can be neutralized with either a dispel magic or neutralize poison spell. The amount of dust created after casting was dependant on the dragon's skill level.

Casting
The spell required only verbal and somatic components.