48 cards where the set is “lcc” and the collector number >= 21 and the collector number <= 68

Admiral Brass, Unsinkable (The Lost Caverns of Ixalan Commander #25)
Altar of the Wretched // Wretched Bonemass (The Lost Caverns of Ixalan Commander #22)
Altar of the Wretched // Wretched Bonemass (The Lost Caverns of Ixalan Commander #22)
Arm-Mounted Anchor (The Lost Caverns of Ixalan Commander #67)
Broadside Bombardiers (The Lost Caverns of Ixalan Commander #54)
Bronzebeak Foragers (The Lost Caverns of Ixalan Commander #37)
Bygone Marvels (The Lost Caverns of Ixalan Commander #57)
Carmen, Cruel Skymarcher (The Lost Caverns of Ixalan Commander #26)
Charismatic Conqueror (The Lost Caverns of Ixalan Commander #38)
Clavileño, First of the Blessed (The Lost Caverns of Ixalan Commander #27)
Contest of Claws (The Lost Caverns of Ixalan Commander #24)
Curious Altisaur (The Lost Caverns of Ixalan Commander #58)
Deeproot Historian (The Lost Caverns of Ixalan Commander #59)
Dinosaur Egg (The Lost Caverns of Ixalan Commander #60)
Don Andres, the Renegade (The Lost Caverns of Ixalan Commander #28)
Dusk Legion Sergeant (The Lost Caverns of Ixalan Commander #48)
Elenda's Hierophant (The Lost Caverns of Ixalan Commander #39)
Eye of Ojer Taq // Apex Observatory (The Lost Caverns of Ixalan Commander #35)
Eye of Ojer Taq // Apex Observatory (The Lost Caverns of Ixalan Commander #35)
Francisco, Fowl Marauder (The Lost Caverns of Ixalan Commander #49)
From the Rubble (The Lost Caverns of Ixalan Commander #40)
Gemcutter Buccaneer (The Lost Caverns of Ixalan Commander #55)
Hakbal of the Surging Soul (The Lost Caverns of Ixalan Commander #29)
Illustrious Wanderglyph (The Lost Caverns of Ixalan Commander #21)
March of the Canonized (The Lost Caverns of Ixalan Commander #41)
Master of Dark Rites (The Lost Caverns of Ixalan Commander #51)
Mist Dancer (The Lost Caverns of Ixalan Commander #44)
Order of Sacred Dusk (The Lost Caverns of Ixalan Commander #65)
Ore-Rich Stalactite // Cosmium Catalyst (The Lost Caverns of Ixalan Commander #23)
Ore-Rich Stalactite // Cosmium Catalyst (The Lost Caverns of Ixalan Commander #23)
Paleontologist's Pick-Axe // Dinosaur Headdress (The Lost Caverns of Ixalan Commander #36)
Paleontologist's Pick-Axe // Dinosaur Headdress (The Lost Caverns of Ixalan Commander #36)
Pantlaza, Sun-Favored (The Lost Caverns of Ixalan Commander #30)
Progenitor's Icon (The Lost Caverns of Ixalan Commander #68)
Promise of Aclazotz // Foul Rebirth (The Lost Caverns of Ixalan Commander #52)
Redemption Choir (The Lost Caverns of Ixalan Commander #42)
Ripples of Potential (The Lost Caverns of Ixalan Commander #45)
Scion of Calamity (The Lost Caverns of Ixalan Commander #61)
Singer of Swift Rivers (The Lost Caverns of Ixalan Commander #66)
Skeleton Crew (The Lost Caverns of Ixalan Commander #53)
Storm Fleet Negotiator (The Lost Caverns of Ixalan Commander #46)
Sunfrill Imitator (The Lost Caverns of Ixalan Commander #62)
Tetzin, Gnome Champion // The Golden-Gear Colossus (The Lost Caverns of Ixalan Commander #31)
Tetzin, Gnome Champion // The Golden-Gear Colossus (The Lost Caverns of Ixalan Commander #31)
The Grim Captain's Locker (The Lost Caverns of Ixalan Commander #50)
The Indomitable (The Lost Caverns of Ixalan Commander #43)
Topography Tracker (The Lost Caverns of Ixalan Commander #63)
Tributary Instructor (The Lost Caverns of Ixalan Commander #64)
Wave Goodbye (The Lost Caverns of Ixalan Commander #47)
Wayta, Trainer Prodigy (The Lost Caverns of Ixalan Commander #32)
Wrathful Raptors (The Lost Caverns of Ixalan Commander #56)
Xavier Sal, Infested Captain (The Lost Caverns of Ixalan Commander #33)
Xolatoyac, the Smiling Flood (The Lost Caverns of Ixalan Commander #34)

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