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Grok Bot+18 agentsTCG Deck Odds
Get checked draw odds, mulligan results, and card-count comparisons to make better deck-building decisions.
$5
TCG Deck Odds
Example session with this skill installed
My 60-card MTG deck has 20 Forest, 4 Kazandu Mammoth, and 36 other spells. Before calculating two lands by turn 2, show how you'd count the modal cards.
- Read your context and instructions
- Compiled the tcg deck odds
Kazandu Mammoth needs a counting decision because its reverse face is a land. Here is the setup to confirm before calculating odds.
Card Roles and Assumptions
| Cards | Count | Proposed treatment |
|---|---|---|
| Forest | 20 | Land |
| Kazandu Mammoth // Kazandu Valley | 4 | Potential land source, if you intend to play the reverse face |
| Other spells | 36 | Nonland, assuming none have land faces |
| Total | 60 | Full deck |
Two useful comparisons
- Forest only: Count 20 lands. This asks whether you see at least two Forests by turn 2.
Include land faces: Count 24 potential land sources. Each Mammoth counts once toward that requirement, not as an extra card.
Kazandu Valley enters tapped. Seeing two land sources is therefore not the same as having two untapped mana available on turn 2. This calculation tracks cards seen through natural draws, not whether a sequence of plays works.
No probabilities have been calculated yet. MTG settings are defaults, so any format-specific rules need confirming.
Next steps
- Choose Forest-only counting, land-face counting, or a comparison of both.
- Confirm whether you are on the play or draw.
- Tell me your mulligan keep rule, or request results without mulligans.
Connects securely to your tools. The creator never sees your data.
About this skill
Missing key cards can cost you games, but guessing at deck changes can make things worse. Get calculated draw odds and comparisons that show what adding lands, energy, or extra copies actually changes.
What it does
- Draw odds: Calculate your chances of seeing specific cards or combinations by a chosen turn.
- Opening hands: Compare keep rates and results after mulligans using your game's rules.
- Deck comparisons: Test different card counts and see the trade-off between missed draws and unwanted extras.
- Pokémon prize risk: Check how likely important cards are to end up in your prizes.
- Checked results: Cross-check exact calculations against simulated draws and provide a visual HTML report.
How it works
- Paste your decklist and ask a question about consistency.
- Specify your game, whether you play or draw first, and which hands you would keep.
- Confirm any cards with ambiguous roles, then review the odds or comparison table.
Works with
Magic, MTG Arena, Commander, Pokémon TCG, Yu-Gi-Oh!, Disney Lorcana, and custom card games. Accepts Arena, MTGO, Pokémon TCG Live, and plain-text decklists. Calculations require an assistant that can run Python.
Why use this skill
It replaces plausible guesses with computed results. Comparing card counts helps you see the cost of a change before rebuilding your deck.
Use cases
- Compare 23 lands against 24.
- Check opening-hand combo access.
- Measure Pokémon prize risk.
- Test starting-hand rules for a homebrew game.
Known limitations
Models natural draws, not resolved search effects, draw spells, scry, surveil, or opponents' actions. Game presets are defaults and may need adjusting.
How to use
Skills on Agensi run inside your AI agent. Copy the prompt, paste it into your agent, and it connects to Agensi and installs this skill for you. If a payment is needed, your agent shows it to you first.
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