Watcher of Hours

Creature — Sphinx

Flying, ward Whenever you remove a time counter from this card while it's exiled, surveil 1. Suspend 6— (Rather than cast this card from your hand, you may pay and exile it with six time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)