Ocean Dragon Lord - Neo-Daedalus
© Can't be Normal Summoned/Set.
© Must be Special Summoned (from your hand) by tributing 1 "Levia-Dragon - Daedalus".
① You can send 1 face-up "Umi" you control to the GY;
send all cards in each player's hand and field to the GY, except this card.
● The only way you can Special Summon this card is via its own procedure.
Even if it was initially summoned that way, you still can't summon it with card effects.