Machina Gearframe (SDMM-EN002) - Structure Deck: Machina Mayhem 1st Edition

Once per turn, you can equip this card to a Machine-Type monster you control, OR unequip it to Special Summon this card in face-up Attack Position. When this card is Normal Summoned, you can add 1 Machina monster (except Machina Gearframe) from your Deck