Marshmallon is a Secret Rare Effect Monster card from Yu-Gi-Oh! (Premium Pack (TCG), PP01). Current market price: $0.13.
Secret Rare
Premium Pack (TCG) (PP01)
Card Text
Cannot be destroyed by battle. After damage calculation, if this card was attacked, and was face-down at the start of the Damage Step: The attacking player takes 1000 damage.
