Blast Sphere is a Common Effect Monster card from Yu-Gi-Oh! (Machina Mayhem Structure Deck, SDMM). Current market price: $0.25.
Common
Machina Mayhem Structure Deck (SDMM)
Card Text
If this face-down Defense Position card was attacked by an opponent's monster, before damage calculation: Equip this card to the attacking monster. Then, during your opponent's next Standby Phase: Destroy the monster this card is equipped to, and if you do, inflict damage to your opponent equal to the ATK the destroyed monster had on the field.
