A Legendary Ocean

(C) This card's name is treated as Umi. (1) Reduce the Level of all WATER monsters in both players' hands and on the field by 1. (2) All WATER monsters gain 200 ATK and DEF.

• The (C) Condition cannot be negated, it applies in the Deck:
• You can have 3 cards total in your Deck between A Legendary Ocean and Umi, because this card’s name is treated as Umi. So you cannot have 3 copies of Umi and 3 copies of A Legendary Ocean in your Deck.
• The name of A Legendary Ocean is treated as Umi always and for all purposes. If Imperial Order is active, the card name is still treated as Umi. If the opponent activates Cursed Seal of the Forbidden Spell targeting Umi, you cannot activate Umi or A Legendary Ocean for the rest of the Duel.
• When A Legendary Ocean is active, you may activate Tornado Wall.
• The (1) Continuous-like Effect applies while this card is face-up on the field.
• When A Legendary Ocean is active, you may Summon or Set Level 5 WATER Monsters from your hand, since they are treated as being Level 4 monsters. If you Set a Level 5 WATER monster you do not have to show your opponent.
• When the effect of Cyber Jar is activated and A Legendary Ocean is on the field, you cannot Special Summon Level 5 WATER monsters picked-up by the effect of Cyber Jar. This is because the effect of A Legendary Ocean does not include Monster Cards in the Deck.
• If A Legendary Ocean and Gravity Bind are active, you may attack with Level 4 WATER monsters (being treated as Level 3). If A Legendary Ocean is destroyed after an attack is declared, a replay occurs because the Level 4 WATER monster can no longer attack.
• If A Legendary Ocean and Infinite Dismissal are active, and you Summon a Level 4 WATER monster (being treated as Level 3), it will be destroyed during the End Phase.
• The (2) Continuous-like Effect applies while this card is face-up on the field.
• When A Legendary Ocean is active, The Legendary Fisherman on the field is unaffected by Spell Cards, so it does not receive the ATK/DEF bonus or have its Level reduced by 1. It still is treated as Level 4 in your hand, so you may Summon it without Tribute.
• A Legendary Ocean does not have the effect of Umi that increases/decreases the ATK and DEF of specific monster Types.