Worth $411 new and sealed, 70356 The Stone Colossus of Ultimate Destruction is the most valuable LEGO Nexo Knights set today. The sets below span 2016 to 2018, and every one of them has retired. Half of them are worth more than $125. Nexo Knights ran from 2016 to 2018, and its fourth season brought the largest sets, such as Knighton Castle and Aaron's Rock Climber.

Below are the most valuable LEGO Nexo Knights sets on the secondary market today, ranked by their current value new and sealed.
Most valuable LEGO Nexo Knights set
70356 The Stone Colossus of Ultimate Destruction $411.37
Largest set
70357 Knighton Castle 1,426 pieces
Most owned set
70317 The Fortrex

70356 The Stone Colossus of Ultimate Destruction

Theme / Subtheme Nexo Knights / Season 4
Year 2017
Pieces / Minifigs 785 / 3
Availability Retired
It features a buildable figure with a rapid-fire 6-stud shooter, prison cells, movable wings, a chomping jaw, punching arms, and a Forbidden Powers crown. Includes 4 scannable shields and minifigures: Jestro, General Garg, Stone Clay, and Macy.
70356 LEGO Nexo Knights Season 4 The Stone Colossus of Ultimate Destruction
Retail $69.99
Value $411.37
Growth  +487.8%
Annual growth 13.7%

70323 Jestro's Volcano Lair

Theme / Subtheme Nexo Knights / Season 2
Year 2016
Pieces / Minifigs 1,186 / 10
Availability Retired
It features Jestro's Volcano Lair with a trapdoor, a library, a detachable throne, and flying Globlins. It includes Macy's Mace Slammer, Axl's Hover Horse, and minifigures Jestro, Bookkeeper, Lavaria, 2 Ash Attackers, 2 Scurriers, Axl, Macy Halbert, and Lance Richmond ,plus scannable shields for six NEXO Powers.
70323 LEGO Nexo Knights Season 2 Jestro's Volcano Lair
Retail $119.99
Value $344.00
Growth  +186.7%
Annual growth 7.3%

70357 Knighton Castle

Theme / Subtheme Nexo Knights / Season 4
Year 2017
Pieces / Minifigs 1,426 / 11
Availability Retired
It features a 2-in-1 castle with foldable walls, Robin’s vehicle with stud shooters, a Mechlok suit with wizard’s hat, a rolling stone prison, detachable tower, living quarters, and minifigures of Aaron, Macy, Clay Moorington, Jestro, Lava Monster with 6 scannable shields.
70357 LEGO Nexo Knights Season 4 Knighton Castle
Retail $129.99
Value $300.44
Growth  +131.1%
Annual growth 7.5%

70355 Aaron's Rock Climber

Theme / Subtheme Nexo Knights / Season 4
Year 2017
Pieces / Minifigs 598 / 5
Availability Retired
It features a 3-in-1 off-road buggy with a detachable crossbow and mini-flyer, a buildable Krakenbeast with posable limbs and a tail weapon, three scannable shields, minifigures Lord Krakenskull, Bouldron, and a Brickster, and Bouldron and Brickster figures.
70355 LEGO Nexo Knights Season 4 Aaron's Rock Climber
Retail $59.99
Value $277.44
Growth  +362.5%
Annual growth 14.4%

70317 The Fortrex

Theme / Subtheme Nexo Knights / Season 1
Year 2016
Pieces / Minifigs 1,140 / 7
Availability Retired
It includes a large hybrid between a castle and a tank that rolls on treads for the knights to pilot and minifigures including Aaron, Ash Attacker, Axl, Chef Éclair, Clay, Scurrier and Scurrier.
70317 LEGO Nexo Knights Season 1 The Fortrex
Retail $99.99
Value $239.96
Growth  +140.0%
Annual growth 6.8%

70352 Jestro's Headquarters

Theme / Subtheme Nexo Knights / Season 3
Year 2017
Pieces / Minifigs 840 / 7
Availability Retired
It features Jestro’s headquarters with a giant face, hidden weapons, detachable Hatattacka, Mobile Stone Keep trailer, Macy’s Underminer vehicle, Stone Wheeler, five scannable shields, and six minifigures: Jestro, Ava, Macy, Lance, a gargoyle, and a Stone stomper.
70352 LEGO Nexo Knights Season 3 Jestro's Headquarters
Retail $89.99
Value $198.78
Growth  +120.9%
Annual growth 7.3%

70315 Clay's Rumble Blade

Theme / Subtheme Nexo Knights / Season 1
Year 2016
Pieces / Minifigs 367 / 5
Availability Retired
It consists of a 4-in-1 vehicle with a Sword Speeder, 2 Sword Break Bikes, and Clay's Rumble Blade with 2 flick missiles. It includes minifigures: Clay Moorington, 2 Claybots, an Ash Attacker, and a Scurrier.
70315 LEGO Nexo Knights Season 1 Clay's Rumble Blade
Retail $39.99
Value $173.85
Growth  +334.7%
Annual growth 9.6%

70351 Clay's Falcon Fighter Blaster

Theme / Subtheme Nexo Knights / Season 3
Year 2017
Pieces / Minifigs 523 / 3
Availability Retired
It features Clay’s Falcon Fighter Blaster with extendable wings, dual six-stud shooters, two cockpits, and a detachable Recon Jet. Includes minifigures Clay and Clay Bot, buildable Grimroc Stone monster, Brickster, and three scannable shields.
70351 LEGO Nexo Knights Season 3 Clay's Falcon Fighter Blaster
Retail $49.99
Value $162.07
Growth  +224.2%
Annual growth 8.9%

70322 Axl's Tower Carrier

Theme / Subtheme Nexo Knights / Season 2
Year 2016
Pieces / Minifigs 670 / 4
Availability Retired
It features a rotating gun turret, detachable with spring-loaded shooters and a disc shooter, a storage vault, hidden catapult, and control room. The set contains 4 minifigures including Ash Attacker, Axl and Axl Bot.
70322 LEGO Nexo Knights Season 2 Axl's Tower Carrier
Retail $69.99
Value $149.51
Growth  +113.6%
Annual growth 6.3%

72006 Axl's Rolling Arsenal

Theme / Subtheme Nexo Knights / Season 5
Year 2018
Pieces / Minifigs 604 / 4
Availability Retired
It consists of Axl's Rolling Arsenal with flick missiles, a drawbridge, and a cockpit; Jestroyer with dual shooters and detachable daggers; Vyro Glyder with critter shooters and sabers; four minifigures; and three scannable shields.
72006 LEGO Nexo Knights Season 5 Axl's Rolling Arsenal
Retail $59.99
Value $137.06
Growth  +128.5%
Annual growth 7.8%

72004 Tech Wizard Showdown

Theme / Subtheme Nexo Knights / Season 5
Year 2018
Pieces / Minifigs 506 / 3
Availability Retired
It features a 3-in-1 mech with a cockpit, buildable sword, rapid shooter, and detachable hologram flyer. The set includes Clay, InfectoByter, and CyberByter figures, a critter base with shooters, and scannable shields.
72004 LEGO Nexo Knights Season 5 Tech Wizard Showdown
Retail $39.99
Value $125.00
Growth  +212.6%
Annual growth 9.8%

70316 Jestro's Evil Mobile

Theme / Subtheme Nexo Knights / Season 1
Year 2016
Pieces / Minifigs 658 / 2
Availability Retired
It features minifigures, Lance Richmond and Jestro, Jestro's Evil Mobile with catapults, a movable cockpit and jaws, prison, storage chest, Sparkks monster.
70316 LEGO Nexo Knights Season 1 Jestro's Evil Mobile
Retail $59.99
Value $118.45
Growth  +97.4%
Annual growth 6.2%

70350 The Three Brothers

Theme / Subtheme Nexo Knights / Season 3
Year 2017
Pieces / Minifigs 266 / 3
Availability Retired
It features a rolling monster vehicle with a giant face, chomping jaws, and a rear firing catapult. It includes Axl, Roog, and Reex minifigures, along with two scannable shields.
70350 LEGO Nexo Knights Season 3 The Three Brothers
Retail $29.99
Value $112.93
Growth  +276.6%
Annual growth 11.3%

70327 The King's Mech

Theme / Subtheme Nexo Knights / Season 1
Year 2016
Pieces / Minifigs 375 / 3
Availability Retired
It features the King's Mech with a detachable sword and shield, a cockpit for King Halbert, and Flamethrower's double crossbow stud shooter. It consists of minifigures: King Halbert, King's bot, and Flamethrower.
70327 LEGO Nexo Knights Season 1 The King's Mech
Retail $29.99
Value $105.67
Growth  +252.4%
Annual growth 8.7%

70321 General Magmar's Siege Machine of Doom

Theme / Subtheme Nexo Knights / Season 2
Year 2016
Pieces / Minifigs 516 / 3
Availability Retired
It features 6 large wheels with translucent-red flame elements, spikes, monster teeth, dual cockpits for General Magmar and Flama, dual catapults, a disc shooter, and includes minifigures General Magmar, Flama, and Clay Moorington with a Hover Horse.
70321 LEGO Nexo Knights Season 2 General Magmar's Siege Machine of Doom
Retail $49.99
Value $105.10
Growth  +110.2%
Annual growth 6.2%

70353 The Heligoyle

Theme / Subtheme Nexo Knights / Season 4
Year 2017
Pieces / Minifigs 318 / 3
Availability Retired
Includes clay, harpy and Stone stomper minifigures and 2 scannable shields.
70353 LEGO Nexo Knights Season 4 The Heligoyle
Retail $29.99
Value $99.21
Growth  +230.8%
Annual growth 10.0%

70313 Moltor's Lava Smasher

Theme / Subtheme Nexo Knights / Season 1
Year 2016
Pieces / Minifigs 187 / 2
Availability Retired
It features a comical Lava Smasher with movable rock fists, a catapult, Aaron Fox's hovershield, and includes minifigures Moltor and Aaron Fox.
70313 LEGO Nexo Knights Season 1 Moltor's Lava Smasher
Retail $19.99
Value $93.44
Growth  +367.4%
Annual growth 9.6%

70326 The Black Knight Mech

Theme / Subtheme Nexo Knights / Season 2
Year 2016
Pieces / Minifigs 530 / 4
Availability Retired
It features the Black Knight Mech with a sword and arrow-shooting shield, Whiperella's Lava Fly, and lair with a catapult. Includes Robin Underwood, King's Bot, Whiperella, Flame Thrower minifigures, and three scannable NEXO Power shields.
70326 LEGO Nexo Knights Season 2 The Black Knight Mech
Retail $39.99
Value $89.95
Growth  +124.9%
Annual growth 6.6%

70354 Axl's Rumble Maker

Theme / Subtheme Nexo Knights / Season 4
Year 2017
Pieces / Minifigs 318 / 4
Availability Retired
It features a 3-in-1 vehicle with dual rotating drill weapons, flip-out wings, a detachable tank, axe holder, two cockpits, and two stud shooters. Includes Axl & Rogul minifigures and Axl Bot & Brickster figures.
70354 LEGO Nexo Knights Season 4 Axl's Rumble Maker
Retail $39.99
Value $78.04
Growth  +95.1%
Annual growth 5.8%

70359 Lance vs. Lightning

Theme / Subtheme Nexo Knights / Season 3
Year 2017
Pieces / Minifigs 257 / 2
Availability Retired
The set includes Lance’s buildable robot horse, Lance and a gargoyle and a Grimroc gargoyle figure.
70359 LEGO Nexo Knights Season 3 Lance vs. Lightning
Retail $24.99
Value $74.32
Growth  +197.4%
Annual growth 9.5%
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