Santiago's Thesis

{2}{g/w}{g/w}{t}: Put a Burrowing Owl creature token onto the battlefield.
Sacrifice 3 bird creatures: Destroy up to 1 target artifact. Search your library for a basic land card and put it onto the battlefield tapped. Shuffle your library.
Defend (Sacrifice this permanent: Until end of turn, you and permanents you control gain indestructible and shroud)