I've been using Sabrina's Psychic Control. Flip a coin. If heads, choose a trainer card in your opponent's discard pile that is not put in play (Like PlusPower and Mysterious Fossil). You may use that card as if it were in your hand, if you do everything required in order to play that card (Like discarding cards). That card stays in your opponent's discard pile. One Question: Does a supporter card counts as in play when it is used?