In the act 2 cinamatics in diablo 2 there is a larger stone Tal Rasha is trapped to and suddenly it appears cool demonic runes. Does anyone know what they say? What is written on the stone?
I think it was just for aesthetics. I would imagine if it was revisited by the current team, it would be some angelic script or some spell formulated by the Horadrim to help with containing the prime. Or maybe a warning to unknowing grave robbers or explorers.