Soul of Windgrace

“Whenever Soul of Windgrace enters the battlefield or attacks, you may put a land card from a graveyard onto the battlefield tapped under your control. <br>G, Discard a land card: You gain 3 life. <br>1R, Discard a land card: Draw a card. <br>2B, Discard a land card: Soul of Windgrace gains indestructible until end of turn. Tap it.”