A-Soul of Windgrace

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