{X}, {T}: Target opponent mills a card, then repeats this process until a creature card or X cards have been put into their graveyard this way, whichever comes first. If one or more creature cards were put into that graveyard this way, sacrifice Helm of Obedience and put one of them onto the battlefield under your control. X can't be 0.
Near Mint - $20.800
Lightly Played - $16.700
Moderately Played - $14.600
Heavily Played - $12.500
Damaged - $10.400
Near Mint Spanish - $20.800
Lightly Played Spanish - $16.700
Moderately Played Spanish - $14.600
Heavily Played Spanish - $12.500
Damaged Spanish - $10.400