If your opponent controls a monster and you control no monsters, you can Special Summon this card from your hand. Each player can only use the effect of Unknown Synchron once per Duel.
NM-Mint Unlimited - $0.60
Lightly Played Unlimited - $0.50
Moderately Played Unlimited - $0.50
Heavily Played Unlimited - $0.40
Damaged Unlimited - $0.30
NM-Mint 1st Edition - $0.40
Lightly Played 1st Edition - $0.40
Moderately Played 1st Edition - $0.40
Heavily Played 1st Edition - $0.30
Damaged 1st Edition - $0.20
NM-Mint Unlimited Non English - $0.60
Lightly Played Unlimited Non English - $0.50
Moderately Played Unlimited Non English - $0.50
Heavily Played Unlimited Non English - $0.40
Damaged Unlimited Non English - $0.30
NM-Mint 1st Edition Non English - $0.40
Lightly Played 1st Edition Non English - $0.40
Moderately Played 1st Edition Non English - $0.40
Heavily Played 1st Edition Non English - $0.30
Damaged 1st Edition Non English - $0.20