Overgrown Goddess Opal

+2: Destroy up to one target artifact. Opal becomes a 2/2 bird creature with flying, hexproof, and indestructible until end of turn.
-2: Search your library for a land card, reveal it, put it onto the battlefield tapped, then shuffle. Create a Treasure token.
-8: Create an X/X Eldrazi creature token and deal X damage to any target, where X is the number of lands you control.