In fact, make them as strong/resilient as the guards at the Kitin Lair. If it takes 5 minutes or longer for Terminator Kipucka to kill a guard, that's probably a good enough strength for temple guards.
But I think the second option, they become attackable only when they attack you (not your teammates), would help preserve the immersion. After all, they would logically be the best of the best at the Temples, so they shouldn't be subject to being farmed, even if they offer no experience or loot =)
But I think the second option, they become attackable only when they attack you (not your teammates), would help preserve the immersion. After all, they would logically be the best of the best at the Temples, so they shouldn't be subject to being farmed, even if they offer no experience or loot =)