Grassy Sanctuary
Land (Rare)

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

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

1, Tap, Sacrifice Grassy Sanctuary: Draw a card.

1W: Grassy Sanctuary becomes a 0/4 green and white Squirrel creature with defender until end of turn. It's still a land.

James Tedin