The building of automata is a science, even in the infernal realms. Some regions are host to what is colloquially referred to as "Darkstone", a deep purple coloured stony matter - which planar prospectors would tell you tends to house veins of literal corruption. When one wants to make a construct it is best to use the materials availed to you, and this is no exception. Still, making it shaped like a panther is a bit on the nose... surely? There can't be that many advantages if it is primarily meant to guard places, right? Instinct: To serve

• Feign inanimation as an art piece of purple stone
• Phase through the same purple stone that it is built from