Thanks. I tried and tried to convince my DM that it was quite obvious that the power should say "save ends." Perhaps all these opinions, especially combined with the fact that the Oni Night Haunter was corrected in precisely the same way, will finally sway him. "No save" just makes absolutely no sense here, especially considering that the Dream Haunting power suggests that there is the possibility of interrupting it by becoming conscious.
DracoSuave said:
Powers have a cap of duration of five minutes/one encounter unless otherwise stated. That includes (no save) and (save ends) powers explicitly.
Can you provide a page number? On page 278 of the
PHB, under "Durations," it talks about sustained powers and "until the end of the encounter" powers having a limit of 5 minutes, but that's it. In fact, the customer service response regarding (save ends) powers has been that they continue until you save, period. For example, if you have ongoing damage (save ends), and you take a short rest, you still have to continue to roll saving throws or you'll eventually die.
A point of note about powers which impose petrification, for example, is that they allow 2 failed saves before a character is officially screwed (the gazes of the Medusa and Basilisk, at least). These creatures also lack an ability that allows them to auto-kill an affected creature if not slain within one round (ala Dream Haunting).
By the wording of the Remove Affliction ritual, it would be reasonable to decide that it can remove permanent unconsciousness, but the specific versus general rule suggests that it technically excludes this condition because it is omitted from the list of effects it cures. Otherwise, unless it is indeed true that powers automatically end after 5 minutes, I can't find a way to end it under RAW aside from killing the victim and bringing him or her back from the dead.