Fortress Whale [STP2-EN006] Ultra Rare Grass[+20] You must also offer monsters

You must also offer monsters whose total Level Stars equal 7 or more as a Tribute from the field or your hand

You can then Set 1 Magic or Trap Card from your hand

opponent cannot choose monsters with [Harpy] in its name on your field as target of attack other than [Harpy Pet Baby Dragon]

Set: Dark Revelation Volume 3 Card type: Fusion/Effect Monster Rarity: Rare Attack: 2200 Defense: 1500 """Dark Blade"" + ""Pitch-Dark Dragon""

Set: EX: Holon Phantoms Type: Energy Rarity: Holo Rare

Fortress Whale [STP2-EN006] Ultra Rare Grass[+20] You must also offer monstersSet: Speed Duel: Tournament Pack 2 Card type: Ritual Monster Rarity: Ultra Rare Attack: 2350 Defense: 2150 You can Ritual Summon this card with "Fortress Whale's Oath".