LEGO dropped the Spinjitzu Slam - Kai vs. Samurai (70684) in 2019 as part of the Ninjago Spinjitzu Slam collection — a neat little set at 164 pieces with a retail price of $19.99. The set includes 2 minifigures, adding play and display value.
Price-per-piece sits at $0.122. Not the cheapest, but you're paying for the design and theme licensing.
For the price point, the Spinjitzu Slam - Kai vs. Samurai delivers a clean Ninjago build that's easy to recommend.
Key Features
164 pieces — Quick, focused build that's fun without the time commitment
2 minifigures — Collectible characters from Ninjago
$0.122 per piece — Better value than the Ninjago average
Spinjitzu Slam subtheme — A popular subcategory within Ninjago
From 2019 — Modern LEGO design and packaging quality
Theme Background
As a 2019 addition to Ninjago, part of the Spinjitzu Slam subcollection, the Spinjitzu Slam - Kai vs. Samurai slots into the more affordable side of Ninjago. Ninjago is consistently one of the top-performing LEGO themes, and at $19.99 this set is priced accordingly. Price-per-piece comes in at $0.122, which is reasonable for what Ninjago typically runs.
Collectors following Ninjago specifically should note the Spinjitzu Slam subtheme — it's a category that tends to draw attention and hold value, especially as sets in this tier age out of production.
Why This Set Is Special
260% above retail. Now trading at $72.00, up 260% from $19.99 RRP — a 26% annualized return over 5.6 years since retirement.
Frequently Asked Questions
[{"q": "How many pieces are in the LEGO Spinjitzu Slam - Kai vs. Samurai (70684)?", "a": "The LEGO Spinjitzu Slam - Kai vs. Samurai (70684) contains 164 pieces, making it a smaller set."}, {"q": "What minifigures come with the LEGO Spinjitzu Slam - Kai vs. Samurai (70684)?", "a": "The LEGO Spinjitzu Slam - Kai vs. Samurai (70684) includes 2 minifigures. Minifigures are a key value driver for LEGO sets \u2014 exclusive or rare minifigures can appreciate significantly in value on their own, sometimes commanding high prices on the secondary market."}, {"q": "How much does the LEGO Spinjitzu Slam - Kai vs. Samurai (70684) cost?", "a": "The retail price (MSRP) for the LEGO Spinjitzu Slam - Kai vs. Samurai (70684) is $19.99 in the United States. Regional pricing is \u00a317.99 in the UK, CA$24.99 in Canada, \u20ac19.49 in Europe. This works out to $0.12 per piece. While you get fewer pieces per dollar than some other Ninjago sets, the build quality and specialized elements justify the premium."}, {"q": "Is the LEGO Spinjitzu Slam - Kai vs. Samurai (70684) a good investment?", "a": "The LEGO Spinjitzu Slam - Kai vs. Samurai (70684) shows moderate investment potential based on several factors. Ninjago sets have historically been among the best-performing themes for post-retirement appreciation. As with any LEGO investment, buying at or below retail price maximizes potential returns. Use the BrickBucks price tracker to find the best entry point."}, {"q": "What age is the LEGO Spinjitzu Slam - Kai vs. Samurai (70684) suitable for?", "a": "The LEGO Spinjitzu Slam - Kai vs. Samurai (70684) is recommended for ages 7+. The build is designed to be approachable for younger builders while still providing an enjoyable experience."}, {"q": "How big is the LEGO Spinjitzu Slam - Kai vs. Samurai (70684)?", "a": "The LEGO Spinjitzu Slam - Kai vs. Samurai (70684) measures approximately 29.0cm \u00d7 24.5cm \u00d7 6.2cm (W\u00d7H\u00d7D). It makes for a great display piece that won't take up too much shelf space."}, {"q": "Is the LEGO Spinjitzu Slam - Kai vs. Samurai (70684) still available?", "a": "The LEGO Spinjitzu Slam - Kai vs. Samurai (70684) retired on July 31, 2020 and is no longer available at retail. You can find this set on secondary markets including Amazon, eBay, and BrickLink. Retired Ninjago sets often trade at a premium above their original retail price, with demand typically increasing over time as sealed inventory decreases."}, {"q": "Where can I buy the LEGO Spinjitzu Slam - Kai vs. Samurai (70684)?", "a": "The LEGO Spinjitzu Slam - Kai vs. Samurai (70684) is retired and only available on secondary markets. Check Amazon, eBay, and BrickLink for current listings. Use the BrickBucks price tracker to compare prices across retailers and find the best deal."}]
