4fd932d3_onsters___Yu_Gi_Oh__Card_Guide__Card_Text
[Card Name] Masked HERO Acid [Type] Fusion/Effect Monster [Attribute] WATER [Sub Type] Warrior [ATK] 2600 [DEF] 2100 [Card Text] 
Must be Special Summoned with "Mask Change" and cannot be Special Summoned by other ways. When this card is Special Summoned: Destroy all Spell and Trap Cards your opponent controls, and if you do, all monsters they control lose 300 ATK.
Yu-Gi-Oh! Level 8 Monsters - Yu-Gi-Oh! Card Guide
Card Text