I tested this mechanic (Possesed monsters gear converted to dust with 5% chance) with 11 tornments, 25% posession, 180% quant, 70%pack, more rares map which dropped me 1d, 1valdo, and other 40c scarabs setup with more rares and converts
15k dust/map on average
LMAO
verisium bar farming is ok tho for stacked decks, but the dust part is a total clown fiesta