Watcher of Hours [Murders at Karlov Manor Commander]

Flying, ward 3
Whenever you remove a time counter from Watcher of Hours while it's exiled, surveil 1.
Suspend 6—1U (Rather than cast this card from your hand, you may pay 1U 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.)