Destruction of Dol Guldor

(You may cast a legendary instant only if you control
a legendary creature or planeswalker.)
Will of the council — Starting with you, each
player votes for a land you don't control. Destroy
each land with the most votes or tied for most
votes. For each land destroyed this way, search
your library for a Forest card and put that card
onto the battlefield tapped. Then shuffle your
library.