Superancient Deepsea King Coelacanth

Card text as printed in this era① Once per turn: You can discard 1 card; Special Summon as many Level 4 or lower Fish as possible from your Deck (they can't attack, also negate their effects). ② If this card is targeted by a card effect (Quick): You can Tribute 1 other Fish; negate the activation, and if you do, destroy that card.