Mokou, Wandering Flame

+2: Destroy 1 target land. You may search your library for land or enchantment and put it on the field.
+2: If in next enemy player's combat stage Mokou, Wandering Flame would take fatal damage, prevent it and set Loyalty her to 20. Draw a card.
-20: Destroy top half of target player's library. You may deal damage to target player equal to number of lands discarded that way.