Kitsune Codex
by FinanzasMTG
Your Personal MTG Inventory Analytics Dashboard
Kitsune Codex connects to your Cardmarket inventory and turns your card data into real insights — price movements, arbitrage gaps, unlisted revenue, and market signals. If you've been managing your collection in a spreadsheet and wished it could do more, this is that tool.
Core Features
- Price tracking — 7-day movement and trend deviation across your full portfolio.
- Unlisted opportunities — cards you own but haven't listed, ranked by potential revenue.
- Arbitrage engine — spot cards priced higher locally than globally and act on it.
- Smart alerts — urgent signals when your pricing or stock positioning needs attention.
Exclusive Access
Access is exclusive to paid members of the FinanzasMTG Patreon. Members get the full dashboard, weekly market data, and direct support. Not ready to commit? Explore everything using the demo — no account needed.
From the Creator
Built by Pablo C. — data leader with 20+ years in the gaming industry and a lifelong Magic player. FinanzasMTG started as a weekend side project tracking Cardmarket prices, and grew into a community of collectors who take the financial side of the game seriously. Kitsune Codex is the tool built for that community.
— Pablo C. · FinanzasMTG
Kitsune Codex
by FinanzasMTG
Connect Your Inventory
Select your MTG inventory Google Sheet directly from your Google Drive.
Kitsune Codex
by FinanzasMTG
Inventory Dashboard
- Optimised Price tip
- From Price tip
- Conservative Price tip
- Value Price tip
Most expensive card
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Highest price increase (7d)
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Highest price decrease (7d)
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Longest unsold
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Inventory
Set-Level Capital Allocation
Price movement
Top Movers (7-Day Difference)
| Card Name | Set | Prev. Price | 7-Day Change | Current Price | Country Stock | Total Stock |
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Pricing
Trend Deviation Matrix
Points below the line are undervalued
Points above are overvalued
Drag or scroll to zoom
Inventory
Liquidity vs. Scarcity Index
Top-left = consider holding · Bottom-right = low margin · Top-right = high demand despite supply · Bottom-left = underpriced relative to scarcity
Drag or scroll to zoom
Market Intelligence
Market Opportunities
Cards where the current market asking price is significantly below the optimised price — the bigger the gap, the better the buying opportunity.
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Market Intelligence
Regional Market Monopoly
Regional equity vs. global cardmarket equity per card
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Arbitrage
Arbitrage Availability Engine
Cards you own where local price exceeds the global trend — sell high in your country, re-buy cheaper from abroad · Top-right = best opportunity · bubble size = cards owned
Inventory Distribution
Inventory
Price Distribution
Number of cards in your inventory by price bracket · bubble shows total value in each range
Pricing
Price Range Box Plot
Top 10 cards by price spread, from From Price to Conservative Price.
Inventory
Listed Cards
Inventory
Reserved List
Inventory
Language
Kitsune Codex
by FinanzasMTG
Inventory History
Follow how your portfolio value and Reserved List composition evolve week by week.
- Optimised Price
- Trend Price
Inventory
Inventory Value History
Weekly inventory value for the selected price basis, stacked by Reserved List status, with average card price shown as lines.
Inventory
Reserved List Portfolio Share
Weekly percentage of total inventory value by Reserved List status.
Inventory
Indexed Value Growth
Inventory value growth relative to each category's first week (baseline = 100).
Inventory
Set Value History
Weekly value of the five largest sets under the selected price basis, with the remainder grouped as Other.
Inventory
Value Drivers by Set
- Week
- Month
- Year
- LTD
Sets with the largest percentage increases and decreases in value over the selected period.
Inventory
Average Copy Value by Set
- Week
- Month
- Year
- LTD
The ten sets with the largest absolute movement in average copy value over the selected period.
Inventory
Set Exposure vs. Average Card Price Movement
- 2 weeks
- 4 weeks
- 8 weeks
- LTD
Average portfolio share against average card price movement over the selected period; bubble size represents cards owned.
Inventory
Set Concentration History
Weekly portfolio composition of the five largest current sets and all remaining sets.
Inventory
Portfolio Performance & Drawdown
Estimated matched-basket price performance (baseline = 100), holding prior quantities constant; declines from each previous peak are shown as drawdown.
Inventory
Net Inventory Activity
See how adding or removing cards changes your portfolio. Bars show the net number of copies entering or leaving each week, while the purple line estimates their effect on inventory value at that week’s prices. Values above zero increase your holdings; values below zero reduce them.
Inventory
Value Change Attribution
- Week
- Month
- Year
- LTD
Estimated split of portfolio value change between net inventory activity and price or mix movement.
Inventory
Pricing Confidence Gap
Difference between Optimised and Trend portfolio valuations; the selected basis is emphasised.
Kitsune Codex
by FinanzasMTG
Inventory Management
Manage the cards that need action now: list missed opportunities and resolve urgent alerts without leaving the dashboard flow.
Opportunities
Unlisted Card Opportunities
Cards you own but have not listed on Cardmarket · ranked by value, local price premium and share of country stock · list them now to unlock potential revenue
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Alerts
Alert Cards
Cards requiring attention · sorted by urgency (U → L → 4 → 3 → 2 → 1), then by name
How alert levels work
Base score (one point per condition)
Status overrides (applied after scoring)
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Pricing
Price Growth
Cards with a recorded purchase price and positive optimised pricing data, showing fee-adjusted growth versus what you originally paid.
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Kitsune Codex
by FinanzasMTG
Deckcheck
Inventory
Build from a decklist
Drop a TXT file with lines like "4 Brainstorm" and an optional "Sideboard" marker. We will compare it with your inventory and surface the exact printings you own.
Upload a deck to start
We will parse the file, match card names against your inventory, and show you which cards are available and which are still missing.
Kitsune Codex
by FinanzasMTG
Raw Data
Browse, filter and export every card in your inventory. Use the column headers to sort and filter, or the quick-filters above the table for common views.
Kitsune Codex
by FinanzasMTG
Settings
Manage your account and inventory source
Data cache
Google Sheets data is cached daily in this browser; weekly history refreshes after the Saturday sync. Use this to force a fresh fetch.