Slot Machine Power Unit
Slot Machine Power Unit (スロットマシーンパワーユニット Surotto Mashīn Pawā Yunitto) is a card type in the manga, used to strengthen the card "Slot Machine".
The only card shown with this type is "7 Completed", which has an ATK variant and a DEF variant. In all other media, this is a Spell Card, with both variants merged into one card.