I think it's a bit too op personally, especially with the new round robin turn system, although I haven't really played 4 man runs but I can imagine the scenario, say you have a level 13 team doing Aetera, normally the team will get one shot on the first turn, but if you have a 47 initiative summoner who invested in pure wits stat and mostly summoning, you can group up all members before the fight, the summoner can initiate combat and act before Aetera, then he can invis the entire team before Aetera can do anything to them, then by delaying turns, you'll get 5 chained turns together and finish off Aetera and everything else before the enemies get a single action.
Players having access to chameleon cloak alone already seems very powerful, blessed smoke is really overkill and not needed in the game imo. On the other hand, none of the other blessed surfaces seems too useful, hell undead players even take damage standing in most of the blessed surfaces.
