You can target 1 Normal Monster or 1 Magikey monster in your GY; add it to your hand, then you can apply 1 of these effects.
• Fusion Summon 1 Magikey Fusion Monster from your Extra Deck in Defense Position, using monsters from your hand or field as Fusion Material.
• Ritual Summon 1 Magikey Ritual Monster from your hand in Defense Position, by Tributing monsters from your hand or field whose total Levels equal or exceed its Level.