If your opponent Special Summons a monster(s) while you control no cards: You can discard this card, then target 1 face-up monster your opponent controls; this turn, that monster cannot be Tributed, or used as material for a Fusion, Synchro, Xyz, or Link Summon. You can only use this effect of "Gnomaterial" once per turn.
Near Mint / Lightly Played Unlimited - $9.00
Moderately Played Unlimited - $8.00
Heavily Played Unlimited - $7.00
Damaged Unlimited - $4.00
Near Mint / Lightly Played 1st Edition - $12.00
Moderately Played 1st Edition - $9.00
Heavily Played 1st Edition - $8.00
Damaged 1st Edition - $5.00