How does the calculator handle mulligans?

The `evaluate_mulligan_decision` tool compares your current hand's quality score against the statistical expectation of a new hand, accounting for the reduction in hand size caused by the `mulliganPenalty`.

Can I track changes to my deck after scrying?

Yes, use the `track_deck_progression` tool to update your `currentDeckSize` and `currentTargetCount` after seeing cards via scry or removing cards through deck thinning.

What mathematical model is used for these calculations?

The server uses the hypergeometric distribution, which is the standard model for sampling without replacement from a finite population, making it perfect for card games.

Card Draw Probability Calculator MCP Connector for Claude

A+

Calculate the mathematical likelihood of drawing specific cards in TCGs like Magic: The Gathering or Yu-Gi-Oh.

4 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides specialized tools for TCG and CCG players to calculate precise probabilities using hypergeometric distribution. Use calculate_draw_probability to find the chance of hitting target cards in your next draws, or get_distribution_table for a full breakdown of all possible outcomes. The evaluate_mulligan_decision tool helps you decide whether to keep your current hand or take a mulligan based on expected quality, while track_deck_progression allows you to update your deck state after scrying or thinning effects.

tcgccgprobabilitymtgyugiohhypergeometricmulligan

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_7a5epFkLxzxKMoByBBzmvGpY8pdJ2BmVrsQQWOP1/mcp

② Claude Code (terminal)

claude mcp add --transport http card-draw-probability-calculator https://edge.vinkius.com/vk_preview_7a5epFkLxzxKMoByBBzmvGpY8pdJ2BmVrsQQWOP1/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "card-draw-probability-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_7a5epFkLxzxKMoByBBzmvGpY8pdJ2BmVrsQQWOP1/mcp"
    }
  }
}

Get full access on Vinkius

The preview token above works for testing. Powered by Vinkius.

Details

Tools: 4
Grade: A+
Score: 100/100
Updated: Oct 1, 2026

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