---
title: "Demon Slayer Cards — $165K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/toys-games/demon-slayer-cards"
last_updated: "2026-08-08T13:43:32.990Z"
locale: en
meta:
description: "Niche score 48/100 · $165K/yr market · 346K searches/yr · $56.61 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $165K/yr market · 346K searches/yr · $56.61 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Demon Slayer Cards — $165K/yr Amazon US Niche (2026) - Flapen"
---
# **demon slayer cards**
**Skip it**
Soft demand (-30.1% this quarter) — this niche doesn't clear our bar today.
Market size 34Growth 10Conversion 11Competition 86Returns 82Price range 44Avg price 91Brand share 11Review moat 94Quality gap 63
**Review moat**
**Great****126.49**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****$56.61**
avg listing price — sweet spot $15–$100
**Competition**
**Great****29%**
top-5 click share — an open shelf
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Price range**
**Okay****$7.93–$199.49**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****$165K**
$165K/yr · 346K searches
**Conversion**
**Bad****0.8%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
**Growth**
**Bad****-30.1%**
90-day search growth — must beat 0% to launch
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, demon slayer cards is a $165K/yr Amazon United States market (346K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Jun–Jul–Nov–Dec. Verdict: Skip it — 48/100.
Data updated Jul 31, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **demon slayer cards market data**
- **Units sold / yr**
- **5K–6K**
- avg 0–100/product
- **Revenue / yr**
- **$283K–$340K**
- units × avg price
- **Conversion rate**
- **0.8%**
- **Avg BSR**
- **#738**
- **Page quality**
- **0%**
- **Prime**
- **87%**
- **Sponsored**
- **55%**
- **Out of stock**
- **16.1%**
- **Avg brand age**
- **32 months**
- **Avg seller age**
- **157 days**
## **Competition & brand share**
Clicks spread well past the top 5 (29% combined) — an open shelf where new products get seen.
**Brands**
**8 **—flat
**Sellers**
**108**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**29%**
Top 20: 62%
**Open market**
**3%**
- BANDAI66% - JOLYN22% - Kayou3% - Generic3% - JUST FUNKY2% - Summer Mae2% - Open — no brand owns it (2 brands, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -30.1% search growth over the last 90 days.
8K6KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul, Nov, Dec · busiest ÷ quietest = 4.8×
[**Open Trend **](https://flapen.com/research/us/toys-games/demon-slayer-cards/trend)
## **Top demon slayer cards search terms**
- **union arena**165K/yr-30.0%0.7% conv. - **union arena booster box**68K/yr-34.1%0.6% conv. - **demon slayer cards**52K/yr-21.9%0.7% conv. - **demon slayer trading cards**16K/yr-29.3%0.6% conv. - **union arena cards**6K/yr-4.3%0.7% conv. - **union arena booster box english**6K/yr-33.9%1.1% conv. - **union arena tcg**6K/yr-30.2%0.7% conv. - **union arena demon slayer**9K/yr-43.2%0.3% conv. - **demon slayer tcg**4K/yr-21.2%0.8% conv. - **demon slayer union arena**6K/yr-48.4%1.3% conv. [**All search terms **](https://flapen.com/research/us/toys-games/demon-slayer-cards/search-terms)
## **Top demon slayer cards products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%3%$5K6%$10K9%$15K12%$20K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Union Arena English TCG: Demon Slayer: Kimetsu No Yaiba - Starter Deck - 50 Cards**BANDAI**$17.07**4.5★80 rev](https://www.amazon.com/dp/B0DT53WKJW) [2**JOLYN Tabitha Womens Athletic One-Piece Swimsuit with Fixed Back for Competitive Swimming Lifeguarding Full Coverage Cotton Candy Size 26**JOLYN**$54.49**4.4★40 rev](https://www.amazon.com/dp/B0FBNYLVJP) [3**Bandai Union Arena Booster Pack 100 Girlfriends Who Love You UA26BT (Box) 16 Pack for Ages 9 and Up**BANDAI**$76.65**4.0★31 rev](https://www.amazon.com/dp/B0D3TG51KL) [4**Union Arena: Full Metal Alchemist Booster Display (UE-09)**BANDAI**$60.39**4.8★20 rev](https://www.amazon.com/dp/B0FGG3KF7T) [5![BANDAI Union Arena Booster Pack Wind Breaker [UA38BT] (Box) 16 Packs](https://m.media-amazon.com/images/I/513FeUB6VnL.jpg)**BANDAI Union Arena Booster Pack Wind Breaker \[UA38BT\] (Box) 16 Packs**BANDAI**$46.24**4.5★26 rev](https://www.amazon.com/dp/B0DQ7NBR5L)
**~~View all top sellers →~~**
### **Newest**
by launch date
[![KAYOU Demon Slayer Kimetsu no Yaiba Dawn Cards Breathing Vol.1 Sealed Booster Box [CN]](https://m.media-amazon.com/images/I/418YViT9RiL.jpg)**KAYOU Demon Slayer Kimetsu no Yaiba Dawn Cards Breathing Vol.1 Sealed Booster Box \[CN\]**Kayou**$34.02**0 rev1mo ago](https://www.amazon.com/dp/B0H5W5662X) [**Union Arena CCG: Tokyo Ghoul Starter Deck (UE18ST)**BANDAI**$26.43**3 rev4mo ago](https://www.amazon.com/dp/B0GV93PV18) [**Bandai Union Arena Precious Booster Pack Goddess of Victory: NIKKE PC02BT (Box) Pack of 10**BANDAI**$86.57**36 rev5mo ago](https://www.amazon.com/dp/B0FWBH1V15) [**Union Arena: Solo Leveling Booster Box**BANDAI**$199.49**3 rev5mo ago](https://www.amazon.com/dp/B0GN2VH3V6) [**Union Arena CCG: Sword Art Online Vol. 02 Booster Box (UEX06BT) - 16 Packs**BANDAI**$73.61**9 rev7mo ago](https://www.amazon.com/dp/B0GDGQKHKJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Summer Mae Blouson Tankini Swimsuits for Women Tummy Control Bathing Suits**Summer Mae**$40.54**4.4★**▲ 245%**](https://www.amazon.com/dp/B0F42C2J1T) [**JOLYN Marie Womens Athletic One Piece Swimsuit Fixed Back for Competitive Swimming Lifeguarding Full Coverage Black Size 28**JOLYN**$55.57**4.3★**▲ 244%**](https://www.amazon.com/dp/B0FBPH3QD3) [**JOLYN Marie Womens Athletic One-Piece Swimsuit with Fixed Back for Competitive Swimming Lifeguarding Full Coverage Elderberry Size 24**JOLYN**$54.67**4.3★**▲ 244%**](https://www.amazon.com/dp/B0FBP43VXL) [![KAYOU Demon Slayer Kimetsu no Yaiba Dawn Cards Breathing Vol.1 Sealed Booster Box [CN]](https://m.media-amazon.com/images/I/418YViT9RiL.jpg)**KAYOU Demon Slayer Kimetsu no Yaiba Dawn Cards Breathing Vol.1 Sealed Booster Box \[CN\]**Kayou**$34.02**0.0★**▲ 242%**](https://www.amazon.com/dp/B0H5W5662X) [**JOLYN Marie Womens Athletic One Piece Swimsuit with Fixed Back for Competitive Swimming Lifeguarding Full Coverage Cloud Size 26**JOLYN**$54.17**4.3★**▲ 242%**](https://www.amazon.com/dp/B0FBPSSLXS)
**~~View all trending →~~**
## **What buyers say about demon slayer cards**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Advertised Vs Actual Product**21%
*“Accurate description”*
**Collectibles**21%
*“Great series”*
**Value For Money**13%
*“A Great Deal”*
**Suitability Beginner**10%
*“Great for beginners”*
**Quality-Overall**10%
*“The cards are good quality”*
**Fun/Entertainment Experience**8%
*“Game is fun”*
**Size-Overall**6%
*“True size”*
**Comfort-Overall**6%
*“Comfortable”*
**Soft Feel**2%
*“It is soft”*
**Trivia Games**2%
*“One of my favorite games”*
### **What buyers complain about **
**Product Condition**40%
*“NOT New”*
**Fun/Entertainment Experience**20%
*“kinda made it boring”*
**Size-Overall**20%
*“its not as big as the Weiß Schwarz edition of nikke”*
**Value For Money**20%
*“Not worth it”*
### **Top return reasons **
**Size-Overall**71%
**Chest Fit**7%
**Advertised Vs Actual Product**3%
**Waist Fit**3%
**Value For Money**3%
**Shape/Style**3%
**Color**2%
**Length**2%
**Hip Fit**1%
**Strap/String Quality**1%
## **Common questions**
- **Is demon slayer cards profitable to sell on Amazon United States?**
- The niche generates $165K/yr across 55 tracked products. 8 of 15 products launched in the last 360 days are still selling. 90-day search growth is -30.1%. Flapen's verdict: Skip it (48/100).
- **How competitive is the demon slayer cards niche?**
- 8 brands and 108 sellers compete. The top 5 products take 29% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in demon slayer cards?**
- Top complaints mined from reviews: Product Condition, Fun/Entertainment Experience, Size-Overall. The return rate is 1.6%.
- **When does demand for demon slayer cards peak?**
- Demand peaks in Jun–Jul–Nov–Dec; the busiest month runs 4.8× the quietest.
- **What does it cost to enter the demon slayer cards niche?**
- Listings span $7.93–$199.49; the average listing price is $56.61 (sweet spot $15–$100). The average incumbent carries 126 reviews — the moat a new listing must climb.
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