Nami, The Cat Burglar

When Nami enters the battlefield choose one—
•Search your library for an Island card, put it
onto the battlefield tapped then shuffle.
•Take control of target artifact an opponent's
control.
Whenever an Island enters the battlefield, create
a treasure token.
At the beginning of your upkeep, if there is at
least 20 Island on the battlefield, you win the
game.