Watcher of Hours
Creature — Sphinx
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.)
Legal in
Legacy, Vintage, Commander
Rulings (13)
If you cast a card "without paying its mana cost," such as with suspend, you can't choose to cast it for any alternative costs. You can, however, pay additional costs. If the card has any mandatory additional costs, you must pay those if you want to cast the card.
2024-02-02
The mana value of a spell cast without paying its mana cost is determined by its mana cost, even though that cost wasn't paid.
2024-02-02
Due to a recent rules change to suspend, you are no longer required to cast the suspended card as the second triggered ability of suspend resolves. Instead, as the second triggered ability resolves, you may cast the card. Timing permissions based on the card's type are ignored. If you don't cast the card, it remains exiled with no time counters on it, and it's no longer suspended.
2024-02-02
Exiling a card with suspend isn't casting that card. This action doesn't use the stack and can't be responded to.
2024-02-02