At the beginning of your end step, if you didn't cast any spells this turn, Grassy Sanctuary deals 1 damage to you.

, Pay 1 life: Add  or to your mana pool.

, , Sacrifice Grassy Sanctuary: Draw a card.

: Grassy Sanctuary becomes a 0/4 green and white Squirrel creature with defender until end of turn. It's still a land.