Omuroko, the Elkish Wrath

+5: You get an emblem with "Landfall: Whenever a land enters the battlefield under your control, add five mana of each color and draw three cards".
+2: Exile all lands, then return them to the battlefield under your control.
-8: You get an emblem with "Landfall: Whenever a land enters the battlefield under your control, create ten 15/15 elk creature tokens with trample.