Urza's Spyglass

At the beginning of your upkeep, look at the top
card of your library. You may pay {1} to put that
card on the bottom of your library. If you do,
put a wear counter on Urza's Spyglass.
When there are 7 wear counters on Urza's
Spyglass, sacrifice it, then draw a card.
"Rust never sleeps"