10 cards where the set is “clu” and the collector number >= 274 and the collector number <= 283

Blood Crypt (Ravnica: Clue Edition #274)
Breeding Pool (Ravnica: Clue Edition #275)
Godless Shrine (Ravnica: Clue Edition #276)
Hallowed Fountain (Ravnica: Clue Edition #277)
Overgrown Tomb (Ravnica: Clue Edition #278)
Sacred Foundry (Ravnica: Clue Edition #279)
Steam Vents (Ravnica: Clue Edition #280)
Stomping Ground (Ravnica: Clue Edition #281)
Temple Garden (Ravnica: Clue Edition #282)
Watery Grave (Ravnica: Clue Edition #283)

This search is finished. Now the real work can begin.