You can only use the (1) and (2) effects of this card’s name once per turn each.
(1) During your Main Phase: You can excavate the top 5 cards of your Deck, and if there is a Rock monster among them you can return cards your opponent controls to the hand up to that amount, also place the excavated cards on the bottom of your Deck in any order.
(2) If there’s a WATER monster in your GY when your opponent activates a Spell/Trap Effect (Quick Effect): You can negate that activation, and if you do, destroy it.