Inaikos, Herald of the Lindus

Merfolk cards without scrycast in your library
have scrycast. Their scrycast cost is equal to their
mana cost minus {1}. (If you see any of those cards
while scrying, you may reveal it and cast it by paying
its mana cost minus {1}.)
Whenever you scry, you may pay {g}{u}. If you do,
while scrying, you may reveal up to one Forest or Island card you see and put it into your hand.