Sakashima the Impostor Homelands you may pay {2} and

you may pay {2} and exile it from your hand face down

Sneak {1}{R}{R} (You may cast this spell for {1}{R}{R} if you also return an unblocked attacker you control to hand during the declare blockers step

sacrifice it at end of combat

Destroy all Plains

This land enters tapped unless you control a Mountain

Sakashima the Impostor Homelands you may pay {2} andYou may have Sakashima the Impostor enter as a copy of any creature on the battlefield, except its name is Sakashima the Impostor, it's legendary in addition to its other types, and it has "{2}{U}{U}: Return Sakashima the Impostor to its owner's hand at the beginning of the next end step."