Eerie greenish glowing mist rises around Aria's hands, and she murmurs babbling, nonsensical syllables as she cuts her palm with her dagger. Instead of blood, some kind of thick ectoplasm drips out, forming a spinning ball in midair in front of her. The mist then for an instant shapes into a skeletal hand that hurls that ball, though Aria herself stays still. The strange sphere streaks away towards the spider, sizzling and spitting as it goes!
(Acid Orb on Spider B!)