The Looming Wave

When The Looming Wave enters the battlefield,
all lands you control become 1/1 creatures with Hexproof. They are still lands.
{t}, {u}{b}{g}: Sacrifice 3 land creatures. Search
your library for a card named Vorx, In Wait He
Lies, and put it onto the battlefield tapped.
"When all the pieces are in the right place, a great
flood of magic shall cleanse the land, prepared for the
coming of Vorx"