Green Sanctuary
Land (Rare)

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

1, Tap: Add GG, GW or WW to your mana pool. Green Sanctuary deals 1 damage to you.

Tap: Target 1/1 creature gets +1/+0 until end of turn.

Christopher Avon