21 cards where the cards aren’t reprints and the name includes “hour”

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Hour of Reckoning (Ravnica: City of Guilds #21)
Hour of Promise (Hour of Devastation #120)
Ninja of the Deep Hours (Betrayers of Kamigawa #44)
Hour of Revelation (Hour of Devastation #15)
Sword of Hours (Forgotten Realms Commander #61)
Gerrard's Hourglass Pendant (Dominaria United Commander #17)
Predators' Hour (Crimson Vow Commander #21)
Hour of Devastation (Hour of Devastation #97)
Sage of Hours (Journey into Nyx #50)
Finest Hour (Alara Reborn #126)
Angel of the Dire Hour (Commander 2014 #1)
Hourglass of the Lost (Modern Horizons 3 Commander #40)
Watcher of Hours (Murders at Karlov Manor Commander #25)
The Eleventh Hour (Doctor Who #41)
Darkest Hour (Urza's Saga #128)
Hour of Eternity (Hour of Devastation #36)
Infinite Hourglass (Ice Age #323)
Hour of Glory (Hour of Devastation #65)
Hour of Need (Journey into Nyx #40)
Lost Hours (Future Sight #69)
The Hourglass Coven (Alchemy Horizons: Baldur's Gate #45)

It is the moment of discovery, the triumph of the mind, and the end of these results.