Oshawott (39/149) [Black & White: Boundaries Crossed] 61 he gained formidable power through

he gained formidable power through body reconstruction

You must also offer monsters from the field or your hand whose total Level Stars equal the Level Stars of the Ritual Monster you are attempting to Ritual Summon

The banished monster returns to the opponent's side of the field

if you Fusion Summon a "Prank-Kids" Fusion Monster (except during the Damage Step): You can have all monsters you control gain 500 ATK (even if this card leaves the field)

this card becomes that Attribute until the end of this turn

Oshawott (39/149) [Black & White: Boundaries Crossed] 61 he gained formidable power throughSet: Black & White: Boundaries Crossed Type: Water Rarity: Common Retreat cost: Colorless