Wondrous Valakas Defense Dye
Take it to the Dye Merchant in town to get a 7-day tattoo that grants certain bonuses (P./ M. Def. +20% when fighting Valakas). Requirements: all classes.
Not dropped by monsters.
Cannot be spoiled.
The chances are official (x1). On servers with x10, x100 and higher rates, drop and spoil come more often.