No, it's not buffed. By targeted I meant any sort of click on GotP that made something happen to it, even playing it, so playing a full hand of upped GotP would deal 56 damage to you. (If you can come up with a better wording, do that please.)
And nightmaring GotP would deny the opponent harder than a non-GotP creature and let you recover some of the damage cost of using GotP.