المفتاح السحري الأعظم - مافتيهل

Cannot be used as material for a Synchro or Xyz Summon, except for the Synchro or Xyz Summon of a "Magikey" monster. If you control a "Magikey" monster: You can reveal this card in your hand; you can Normal Summon 1 "Magikey" monster during your Main Phase this turn, in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) When this card is Normal Summoned: You can target 1 Level 4 or lower Normal Monster, or Level 4 or lower "Magikey" monster, in your GY; Special Summon it in Defense Position. You can only use this effect of "Maginificent Magikey Mafteal" once per turn.