Variable Colorless, Tap: Target opponent puts cards from the top of his or her library into his or her graveyard until a creature card or X cards are put into that graveyard this way, whichever comes first. If a creature card is put into that graveyard this way, sacrifice Helm of Obedience and put that card onto the battlefield under your control. X can't be 0.
Slight Play Condition
Cards in Slightly Played condition show definite, minor wear. Examples of cards in this grade include cards with minor border wear, minor corner wear, very minor bending, slight scratching, clouding, or scuffing/loss of gloss on the front due to play. Cards signed by individual's including signatures by the cards artist, or cards with a professional event stamp, are classified as Slight Play if they would otherwise be Near Mint or Slightly Played. Foils in this condition will generally have some clouding or wear on the front of the card. Dave & Adam's recommends opaque sleeves for use of Slightly Played cards in organized play events.