Astral Clock Tower

Astral Clock Tower enters the battlefield taped.

{t} : Add {c}.

{2}, {t} : Put a “Time” marker on Astral Clock Tower. Then, if Astral Clock Tower has three
or more “Hour” markers, exile it. When you
exile it, you can replay up to two artifact cards from your graveyard or exile this turn, without paying their mana cost.