(Gilt-Leaf Wastes isn't a spell.)

When Gilt-Leaf Wastes enters the battlefield, sacrifice it unless you pay .

Gilt-Leaf Wastes is indestructible. (Destroy effects and lethal damage don't destroy it.)

When Gilt-Leaf Wastes enters the battlefield, put a land you control on the bottom of its owner's library.

: Add  to your mana pool.