Iron Man vs. Loki!
A Cosmic Cube showdown!

Join the action with Iron Man as he races to stop Loki! Perfect for young Super Hero fans ready to build and save the day.

LEGO Iron Man vs. Loki set 10721 - 66 pieces, Marvel Super Heroes theme, product photo Pin It
LEGO Iron Man vs. Loki set 10721
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🏛 Marvel Super Heroes
Set #10721

Iron Man vs. Loki

Iron Man vs.

🏆 Best For: Ideal for young builders transitioning to standard LEGO bricks and Marvel minifigure collectors. ⏱ 0.5 hr build 🧩 66 pcs 🎂 Ages 4+
★★★☆☆ 3.4 from 3 reviews

Parents and young builders praise the instant playability and excellent minifigures, though collectors note the build is extremely basic and the current aftermarket price is quite high for 66 pieces.

MSRP
$12.99
Best Price
$11.69
You Save
10% OFF
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📝 Our Take

Iron Man vs. Loki is a delightfully accessible entry point into the Marvel Super Heroes universe. Released in 2016 as part of the Juniors line, this compact 66-piece set packs a surprising punch by pitting two of the MCU's most iconic rivals against each other in an easy-to-build format.

This set is perfect for young builders taking their first steps beyond DUPLO and Marvel collectors seeking classic minifigures. With its simplified building techniques, printed pieces, and instant playability, it offers a quick, satisfying win for kids and a nostalgic trip for older fans.

Skip this if you are looking for a complex, display-worthy build or a high piece count. At 66 pieces, it is designed for play rather than intricate detail, so seasoned builders might prefer larger Marvel legacy sets instead.

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Is the Iron Man Mark 7 minifigure in this set exclusive? How long does it take to build the Iron Man vs. Loki set? Why has the price of this retired Juniors set risen so much? Are there any printed elements in LEGO set 10721?

🧱 Building Experience

🧩
66
Pieces
⏱
0.5h
Build Time
📊
Beginner
Difficulty
📏
4cm × 9cm × 6cm
Dimensions
Build Highlights:
  • Features a quick-start chassis for easy vehicle assembly
  • Includes iconic Marvel minifigures of Iron Man and Loki
  • Utilizes bright, appealing colors perfect for younger kids
  • Provides instant heroic roleplay opportunities right out of the box

📈 Investment Analysis

↑ Trending up since release
B
Investment Grade
⏳ Appreciating
With a retired status and a current market value hovering around $40 compared to its original $12.99 MSRP, Iron Man vs. Loki has shown surprisingly strong appreciation. This growth is primarily driven by the enduring popularity of the Marvel Cinematic Universe and the collectible nature of the included minifigures, particularly the Mark 7 Iron Man and Loki. However, potential investors should note that the build itself holds little value, and the market for 4+ sets is generally narrower than that for UCS or adult-targeted lines. Future growth may slow down as newer, more detailed versions of these characters are released in modern sets, making this best suited for completionist collectors.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

📖 About This Set

Help Iron Man fight Loki to protect the cosmic cube!

Loki is trying to steal the cosmic cube, but here comes Iron Man in his super-fast car! Can our hero use his special powers to defeat Loki? Only you can decide! Jump into the world of super heroes with LEGO® Juniors Marvel Super Heroes Iron Man vs. Loki. Build a hero, be a hero!

  • Includes Iron Man and Loki minifigures.
  • Features Iron Man’s super-fast car, with rolling wheels. Includes cosmic cube container.
  • Bigger base piece to make building and play easier.
  • Includes Loki’s magic scepter.
  • Includes easy-to-follow building instructions.
  • Car measures over 1” (4cm) high, 3” (9cm) long and 2” (6cm) wide.

Iron Man|n Loki|n Arc Reactor Asgardians Avengers Car Comic Avengers Comic Iron Man Comic Loki Infinity Stone Iron Man Mark 7 Iron Man Themed Transport Juniors Loki's Scepter Marvel Comics Space Stone Stark Industries Tesseract

📦 Full Parts Inventory - 29 unique parts • 56 total pieces

Plate Special 1 x 2 with Clip Horizontal on Side Plate Special 1 x...
Part #: 11476 2× White
Vehicle Base 4 x 10 x 2 1/2 with Mudguards, Wheel Pins and 6 x 2 Centre Recess with 3 Holes, Red Wheel Holders Vehicle Base 4 x ...
Part #: 12622c01 1× Red
Tile Special 1 x 2 Grille with Bottom Groove Tile Special 1 x ...
Part #: 2412b 3× Dark Red
Tile Special 1 x 2 Grille with Bottom Groove Tile Special 1 x ...
Part #: 2412b 2× Flat Silver
Tile Special 1 x 2 Grille with Bottom Groove Tile Special 1 x ...
Part #: 2412b 2× Pearl Gold
Tile 1 x 4 with Iron Man Mask and Gold 'STARK' Print Tile 1 x 4 with I...
Part #: 2431pr0079 1× Dark Red
Brick 2 x 4 Brick 2 x 4
Part #: 3001 2× Black
Brick 2 x 2 Brick 2 x 2
Part #: 3003 2× Dark Bluish Gray
Brick 1 x 1 Brick 1 x 1
Part #: 3005 1× Trans-Dark Blue
Rock 1 x 1 Jewel / Gem 24 Facet Rock 1 x 1 Jewel ...
Part #: 30153 1× Trans-Dark Blue
Plate 4 x 6 Plate 4 x 6
Part #: 3032 1× Black
Bar 4L (Lightsaber Blade / Wand) Bar 4L (Lightsabe...
Part #: 30374 4× Trans-Red
Bar 4L (Lightsaber Blade / Wand) Bar 4L (Lightsabe...
Part #: 30374 2× Trans-Light Blue
Brick Sloped 45° 2 x 2 Brick Sloped 45° ...
Part #: 3039 2× Dark Red
Brick Sloped 45° 2 x 1 with Bottom Pin Brick Sloped 45° ...
Part #: 3040b 2× Red
Brick Curved 2 x 2 with Lip, No Studs Brick Curved 2 x ...
Part #: 30602 1× Trans-Light Blue
Steering Stand 1 x 2 with Black Steering Wheel Steering Stand 1 ...
Part #: 3829c01 1× White
Brick Round 2 x 2 with Axle Hole Brick Round 2 x 2...
Part #: 3941 1× Trans-Light Blue
Seat / Chair 2 x 2 with Center Sprue Mark Seat / Chair 2 x ...
Part #: 4079b 1× White
Bracket 1 x 2 - 2 x 2 Bracket 1 x 2 - 2...
Part #: 44728 2× Dark Bluish Gray
Brick Wedged, Curved Triple 4 x 4 x 2/3 with 2 Studs and Iron Man Armor and Round Arc Reactor Print Brick Wedged, Cur...
Part #: 45677pr0003 1× Dark Red
Plate Special 1 x 2 [Side Handle Closed Ends] Plate Special 1 x...
Part #: 48336 2× Pearl Gold
Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Brick Sloped Inve...
Part #: 4871 1× Dark Bluish Gray
Brick Curved 3 x 1 No Studs Brick Curved 3 x ...
Part #: 50950 2× Pearl Gold
Wedge Plate 2 x 4 Wedge Plate 2 x 4
Part #: 51739 1× Red
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Light Cover 1 x 1...
Part #: 58176 2× Trans-Light Blue
Wheel 11 x 12 with Hole Notched for Wheels Holder Pin Wheel 11 x 12 wit...
Part #: 6014b 4× White
Bar 1 x 6 [Closed Studs] Bar 1 x 6 [Closed...
Part #: 6140 1× Light Bluish Gray
Plate Special 2 x 2 with Groove and Center Stud (Jumper) Plate Special 2 x...
Part #: 87580 1× Yellow
Plate Special 2 x 2 with Groove and Center Stud (Jumper) Plate Special 2 x...
Part #: 87580 1× White
Tyre 21 x 12 with Offset Tread Small Wide and Center Band Tyre 21 x 12 with...
Part #: 87697 4× Black
Weapon Staff with Forked End (Pharaoh) Weapon Staff with...
Part #: 93252 1× Pearl Gold
Brick Curved 4 x 1 Double with No Studs Brick Curved 4 x ...
Part #: 93273 1× Red

🛒 Where to Buy

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💡 MOC Potential

🚗 Rebuild the cosmic cube stand and super car into a mini stark tech defense turret.

Related Articles

📰 Set News

View all news

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 6 videos
4.7 /5
Very Positive
83% positive
BlockTalk AI

LEGO YouTubers generally express positive sentiment towards the LEGO Juniors Iron Man vs. Loki set (10721). Reviewers at BrickBros UK consistently rated the set highly, giving it 4.5/5 bricks, praising its value despite it being a Juniors set.

YouTube thumbnail: LEGO MARVEL SPIDER-MAN GHOST RIDER TEAM UP 76058 SET REVIEW

LEGO MARVEL SPIDER-MAN GHOST RIDER TEAM UP 76058 SET REVIEW

BrickBros UK • 1.0K views Review
YouTube thumbnail: LEGO MARVEL SUPERHEROES CASUAL TONY STARK MINIFIGURE

LEGO MARVEL SUPERHEROES CASUAL TONY STARK MINIFIGURE

BrickBros UK • 1.0K views Review
YouTube thumbnail: LEGO MARVEL 76058 ALTERNATIVE BUILD GHOST RIDER'S TANK

LEGO MARVEL 76058 ALTERNATIVE BUILD GHOST RIDER'S TANK

BrickBros UK • 1.0K views Review
Community insights from Reddit discussions and YouTube reviews. Content may not reflect official LEGO positions.

Community Sentiment

Based on 6 YouTube reviews

Reddit

Not enough Reddit data

YouTube

4.7 /5
Very Positive
83% positive
5
Positive
1
Mixed
0
Critical
Common Feedback
+ Value, Build
BlockTalk AI Analysis

LEGO YouTubers generally express positive sentiment towards the LEGO Juniors Iron Man vs. Loki set (10721). Reviewers at BrickBros UK consistently rated the set highly, giving it 4.5/5 bricks, praising its value despite it being a Juniors set.

Sentiment analysis based on community discussions. Scores reflect overall opinion trends.

What the Community Says

5 YouTube reviews
BlockTalk AI Summary

BrickBros UK repeatedly highlights the minifigures, especially Loki, as a major selling point, particularly for those who missed them in 2012. While acknowledging the builds are simple due to the set's Junior status, they find them acceptable for the target audience.

Reddit Reviews

No Reddit reviews found

YouTube Reviews

5 videos
YouTube thumbnail: LEGO MARVEL SPIDER-MAN GHOST RIDER TEAM UP 76058 SET REVIEW

LEGO MARVEL SPIDER-MAN GHOST RIDER TEAM UP 76058 SET REVIEW

BrickBros UK
1.0K views Review
YouTube thumbnail: LEGO MARVEL SUPERHEROES CASUAL TONY STARK MINIFIGURE

LEGO MARVEL SUPERHEROES CASUAL TONY STARK MINIFIGURE

BrickBros UK
1.0K views Review
YouTube thumbnail: LEGO MARVEL 76058 ALTERNATIVE BUILD GHOST RIDER'S TANK

LEGO MARVEL 76058 ALTERNATIVE BUILD GHOST RIDER'S TANK

BrickBros UK
1.0K views Review
YouTube thumbnail: LEGO SPIDER-MAN DOC OCK'S TENTACLE TRAP 76059 SET REVIEW

LEGO SPIDER-MAN DOC OCK'S TENTACLE TRAP 76059 SET REVIEW

BrickBros UK
1.0K views Review
Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

📖 Building Instructions 2

Iron Man vs. Loki Instructions
BI 3003/24, 10721 V29
Download PDF
Iron Man vs. Loki Instructions
BI 3003/24, 10721 V39
Download PDF

Charts Inventory Statistics

29
Unique Parts
56
Total Pieces
2
Minifigures
Inventory Version: 1

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