When there is 1 or more monster on the field of the controller of this card, his/her opponent cannot place a monster on the field if the opponent would then have more monsters on the field than the controller of this card.
Near Mint / Lightly Played Unlimited - $3.00
Moderately Played Unlimited - $2.50
Heavily Played Unlimited - $2.50
Damaged Unlimited - $2.00
Near Mint / Lightly Played 1st Edition - $11.00
Moderately Played 1st Edition - $10.00
Heavily Played 1st Edition - $8.00
Damaged 1st Edition - $6.50