19 cards where the set is “rex” and the collector number >= 27 and the collector number <= 45

Blue, Loyal Raptor (Jurassic World Collection #33)
Compy Swarm (Jurassic World Collection #34)
Cresting Mosasaurus (Jurassic World Collection #28)
Dino DNA (Jurassic World Collection #45)
Don't Move (Jurassic World Collection #27)
Ellie and Alan, Paleontologists (Jurassic World Collection #35)
Grim Giganotosaurus (Jurassic World Collection #36)
Henry Wu, InGen Geneticist (Jurassic World Collection #37)
Hunting Velociraptor (Jurassic World Collection #30)
Ian Malcolm, Chaotician (Jurassic World Collection #38)
Indominus Rex, Alpha (Jurassic World Collection #39)
Indoraptor, the Perfect Hybrid (Jurassic World Collection #40)
Life Finds a Way (Jurassic World Collection #31)
Owen Grady, Raptor Trainer (Jurassic World Collection #41)
Permission Denied (Jurassic World Collection #42)
Ravenous Tyrannosaurus (Jurassic World Collection #43)
Savage Order (Jurassic World Collection #32)
Spitting Dilophosaurus (Jurassic World Collection #29)
Swooping Pteranodon (Jurassic World Collection #44)

The message was clear to Sorin—time to search for something else.