New rune: summon artificer shell ("travel", "hell", "tech")
1 cultist
Requires 4 plasteel to convert to a shell

Boring coder stuff: Wrote a proc called mob/proc/sac_act - pretty simple thing that gets called in the sacrifice rune instead of it being a huge unwieldy wall of text full of conditionals
Exciting future of the game stuff: This will allow me to enable all mobs to be sacrificed.
¬TO-DO: Move current sacrifice code into relevent sac_act procs for humans, monkeys, aliums
¬TO-DO: Write sac_acts for the other mob types
-¬DONE: Corgis
--¬TO-DO: Make corgi sacrifice !!FUN!!