Iridescent Hallucinations

Name a card. Target opponent reveals his or her hand, then discards the named card, if able. Otherwise, that player discards a card. Create an X/3 black Nightmare creature token, where X is the discarded card's converted mana cost.
Scarecrow's toxin draws forth a person's innermost fears from the depths of their subconscious. Each victim confronts their own unique horrors.