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tengen uzui sword

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Soft demand (-17.8% this quarter) — this niche doesn't clear our bar today.

Market size 26Growth 16Conversion 34Competition 24Returns 58Price range 44Avg price 89Brand share 57Review moat 71Quality gap 45

Avg price

Great$60.38

avg listing price — sweet spot $15–$100

Review moat

Good663.86

avg incumbent reviews — the moat a new listing must climb

Returns

Good2.7%

return rate — above 6% kills the launch gate

Brand share

Good71%

top-5 brand share — brands hold most of the demand

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Price range

Okay$13.51–$205.20

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Okay2.7%

search→purchase rate — share of searches ending in a sale

Market size

Okay$106K

$106K/yr · 65K searches

Competition

Bad71%

top-5 click share — a locked-up shelf

Growth

Bad-17.8%

90-day search growth — must beat 0% to launch

Competition

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

14 falling

Sellers

44

Top-5 brand share

71%

Open market

24%

  • Cold Blade24%
  • Jorumo17%
  • Mingshao13%
  • Zisu9%
  • SV8%
  • damdos5%

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$11K20%$21K30%$32K40%$42K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 14 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -17.8% search growth over the last 90 days.
4K3KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul, Aug, Sep, Oct, Nov, Dec · busiest ÷ quietest = 6.0×

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall20%

“they are very well made”

Fun/Entertainment Experience17%

“Fun building experience”

Size-Overall13%

“Nice size”

Gifting Purpose8%

“It was a gift”

Strength8%

“They are huge and sturdy”

Design-Overall7%

“Cool build project and decor”

Assembly/Installation3%

“it was easy to assemble”

Collectibles3%

“Perfect for my collection”

Weight Light3%

“Light weight as well so wouldn't be hard to carry for long periods”

Pain Relief-Overall3%

“had no problems with them. no back pain of any kind”

What buyers complain about

Assembly/Installation14%

“My 14 yo found this very frustrating to assemble”

Durability14%

“it broke too easily”

Sharpness13%

“Theyre not sharp”

Defective Material/Parts13%

“Missing and damaged pieces out of the box”

Size-Overall11%

“dont fit properly”

Quality-Overall6%

“the quality is average”

Color6%

“The colors are not really the greatest”

Strength2%

“it will fall apart if you're too rough with it”

Advertised Vs Actual Product2%

“product description was not kidding when it said 1488 pieces”

Top return reasons

Defective Material/Parts17%
Assembly/Installation16%
Advertised Vs Actual Product16%
Size-Overall12%
Value For Money8%
Material Quality8%
Quality-Overall6%
Gifting Purpose3%
Product Condition3%
Sharpness2%