Jace, the Mind Sculptor - Eternal Masters (EMA) Showcase sacrifice it unless you return

sacrifice it unless you return an untapped Island you control to its owner's hand

that card returns to the battlefield

"See how gratefully this world accepts our blessings

this creature enters the battlefield with three +1/+1 counters on it

and the clan

Jace, the Mind Sculptor - Eternal Masters (EMA) Showcase sacrifice it unless you return[+2]: Look at the top card of target player's library. You may put that card on the bottom of that player's library. [0]: Draw three cards, then put two cards from your hand on top of your library in any order. [1]: Return target creature to its owner's hand. [12]: Exile all cards from target player's library, then that player shuffles their hand into their library.