You can only use the 1st and 2nd effect of this card’s name each once per turn.
(1) You can send 1 “Umi” from your hand, Deck, or face-up field to the GY; Special Summon 1 WATER monster from your hand.
(2) When your opponent activates a Spell Card or effect, or a monster effect, and “Umi” is face-up on the field (Quick Effect): You can negate that effect, then this card gains 600 ATK/DEF.