Water Energy (2010 Unnumbered HGSS Style) [League & Championship Cards] 030 Once per turn: You can

Once per turn: You can discard 1 DARK monster

Set: Duelist League Promo Card type: Spell Card Rarity: Rare Target 1 face-up monster your opponent controls

Set: Wizards of the Coast: Black Star Promos Type: Lightning Rarity: Black Star Promo Retreat cost: Colorless

Set: Retro Pack 1 Card type: Ritual/Effect Monster Rarity: Ultra Rare Attack: 0 Defense: 0 Once per turn

You must also offer monsters whose total Level Stars equal 1 or more from the field or your hand as a Tribute

Water Energy (2010 Unnumbered HGSS Style) [League & Championship Cards] 030 Once per turn: You canSet: League & Championship Cards Type: Water Rarity: Common