Goat format ruling

A Legendary Ocean

This card by format:GoatEdisonTenguREDUAdvanced
A Legendary Ocean
Card effect (current official text)(This card's name is always treated as "Umi".) All WATER monsters on the field gain 200 ATK/DEF. Reduce the Level of all WATER monsters in both players' hands and on the field by 1.

Rulings

  • 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 applying, 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 applying, you may Summon or Set Lv 5 WATER Monsters from your hand, since they are treated as being Lv 4 monsters. If you Set a Lv 5 WATER monster you do not have to show your opponent.
  • When A Legendary Ocean is applying, The Legendary Fisherman on the field is unaffected by Spell Cards, so it does not receive the ATK/DEF bonus or have its Lv reduced by 1. It still is treated as Lv 4 in your hand, so you may Summon it without Tribute.
  • When the effect of Cyber Jar is activated and A Legendary Ocean is on the field, you cannot Special Summon Lv 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 applying, you may attack with Lv 4 WATER monsters (being treated as Lv 3). If A Legendary Ocean is destroyed after an attack is declared, a replay occurs because the Lv 4 WATER monster can no longer attack.
  • If A Legendary Ocean and Infinite Dismissal are applying, and you Summon a Lv 4 WATER monster (being treated as Lv 3), it will be destroyed during the End Phase. A Legendary Ocean does not have the effect of Umi that increases/decreases the ATK/DEF of specific monster Types.
  • While "A Legendary Ocean" is on the field, Ritual Summons using WATER monsters as Tributes must take into account the reduced Star Level.
  • Cards revealed by "Cyber Jar" or "Morphing Jar #2" are not considered in the hand. The one star reduction given by "A Legendary Ocean" does not apply to monsters revealed by "Cyber Jar" or "Morphing Jar #2’s" effect.
  • If "Prohibition" has been activated and "Umi" has been declared, "A Legendary Ocean" may not be played.
  • "A Legendary Ocean" is not a valid choice for the effect of "Prohibition."
source: Rulings_Goat (Format Library) · 1 era-inappropriate line(s) removed
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.

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