35 cards where the set is “big” and the collector number >= 31 and the collector number <= 65

Collector's Cage (The Big Score #31)
Grand Abolisher (The Big Score #32)
Oltec Matterweaver (The Big Score #33)
Rest in Peace (The Big Score #34)
Esoteric Duplicator (The Big Score #35)
Simulacrum Synthesizer (The Big Score #36)
Worldwalker Helm (The Big Score #37)
Greed's Gambit (The Big Score #38)
Harvester of Misery (The Big Score #39)
Hostile Investigator (The Big Score #40)
Generous Plunderer (The Big Score #41)
Legion Extruder (The Big Score #42)
Memory Vessel (The Big Score #43)
Molten Duplication (The Big Score #44)
Territory Forge (The Big Score #45)
Ancient Cornucopia (The Big Score #46)
Bristlebud Farmer (The Big Score #47)
Omenpath Journey (The Big Score #48)
Sandstorm Salvager (The Big Score #49)
Vaultborn Tyrant (The Big Score #50)
Loot, the Key to Everything (The Big Score #51)
Pest Control (The Big Score #52)
Lost Jitte (The Big Score #53)
Lotus Ring (The Big Score #54)
Nexus of Becoming (The Big Score #55)
Sword of Wealth and Power (The Big Score #56)
Torpor Orb (The Big Score #57)
Transmutation Font (The Big Score #58)
Fomori Vault (The Big Score #59)
Tarnation Vista (The Big Score #60)
Vaultborn Tyrant (The Big Score #61)
Loot, the Key to Everything (The Big Score #62)
Lotus Ring (The Big Score #63)
Sword of Wealth and Power (The Big Score #64)
Tarnation Vista (The Big Score #65)

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