Crystal Skull, Isu Spyglass (Extended Art) - Universes Beyond: Assassin's Creed - 158

Crystal Skull, Isu Spyglass (Extended Art) — Universes Beyond: Assassin's Creed, #158, R

You may look at the top card of your library any time.
You may play historic lands and cast historic spells from the top of your library.
T: Add U.

• Type: Legendary Artifact

The device can spy on anyone with just a drop of their blood.