having recently found out that the iron (cliffs or mines) whichever has 2 save counters can only be used once per triggering effect, i.e only one save can be used if some one plays valar, i;m curious if multiple icons may be give back to a character targeted by the scourge, i'm fairly certain this was brought up before but just want added clarification. thanks

Each icon stolen by the scourge opens up a different response opportunity. So if a character loses three icons due to The Scourge, you could trigger the response three times to give all the icons back.

And iron cliffs can be used to save two characters from the same kill effect(Valar for example). It cannot be used to save the SAME character two times by the same effect.