Reader of Currents

Islandwalk (This creature can't be blocked as long
as defending player controls an Island.)
Whenever Reader of Currents deals combat
damage to a player, if an Island entered the battlefield this turn, you may return Reader of Currents to it owner's hand. If you do, look at
the top three cards of your library, then put
them back in any order. You may shuffle. Draw
a card.