say you have a sacred army of tepok and you use a skink priest i understand you have to have tepok on the priest but can you also give him MotOO as well? i think it's illegal but i'd like to hear other input
I believe you can still at the Mark of the Old Ones, but I am not 100% sure, its never specified one way or the other in the rulesfor Sacred Spawning lists.
Since the priest is only allowed one spawning under current rules, then yes it would be illegal to put the Mark of the Old Ones on him as well. Nothing states that a second spawning can be added to any character that didn't already have the option to take two spawnings (and subsequently, why there's no rare slotted three spawning saurus warrior blocks). I understand why you'd want to put the mark on it, both in game and fluff wise, but it might have been unbalanced in the playtesting and thus illegal.