Anrumnois, Eternal Falls

{t}, pay 1 life: add {c}
If Anrumnois, Eternal Falls is in your opening hand, you may discard it. If you do, draw a card.
Pay half your life, rounded down: draw a card. Activate this ability only when your life total is greater than 1 and only any time you could cast a sorcery.
The Eternal Falls never run out of water.