(Tropical Precipice isn't a spell.)

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

Tropical Precipice is indestructible. (Destroy effects and lethal damage don't destroy it.)

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

, , Sacrifice Tropical Precipice: Draw a card.