Unknown Synchron
[Machine/Tuner/Effect]
If only your opponent controls a monster, you can Special Summon this card (from your hand). You can only Special Summon "Unknown Synchron" once per Duel this way.
ATK/0 DEF/0
[Machine/Tuner/Effect]
If only your opponent controls a monster, you can Special Summon this card (from your hand). You can only Special Summon "Unknown Synchron" once per Duel this way.
ATK/0 DEF/0