Venom, the young of several mantids mimic ants, but I'm unaware of phasmids that do so. The resemblance of adults of this species to scorpions is purely coincidental, as the most suited camouflage in their environment is mimicking a dead, curled leaf.
Scorpio, I'm surprised you didn't have much success with this species. I didn't
raise two nymphs into healthy adults reaching nearly eight inches in length.
If your emperor scorpion stops eating, don't panic.
Be nice -- you were a noob once, too
"Never ask an engineer to explain something, because he will."