[JMason]

Hm, okay. How does Jumping fit in to this (if at all)? The write up for Acid Spider states: "it lurks in dark cracks [...] jumps on its quarry, biting with fangs that can penetrate plate armor and injecting fast-acting corrosive venom that partially digests its prey."

Would the described action be a Move and Attack or two rounds of combat? I'd be tempted to allow a jump to count as the movement portion of an All-Out Attack, but I'm not sure that is RAW.