The Doors of Durin

At the beginning of your upkeep, scry 1.
Whenever you cast a creature spell, you may
pay {u}. If you do, draw a card.
"The Doors of Durin, Lord of Moria. Speak, friend, and enter. I, Narvi, made them. Celebrimbor of Hollin drew these signs."
Gandalf - The Fellowship of the Ring