For players building a new deck or fixing one that keeps losing, get help with card choices, mana or resource curves, and synergies that support your win condition. Share your game, format, and available cards, then get a playable deck list, explanations for key choices, and swap ideas for cards you don’t own. You can also paste a list for a cut-by-cut review.
Deckbuilding
Build a collectible card game deck around your format, collection, budget, and win condition.
Use Deckbuilding
$49.99 / month
Includes every Agent on Ai-GEN. 15,000+ Agents for one monthly price, cancel anytime.
From the creator of GPTs with 8.5M+ chats · 4.2 stars · 37K+ reviews
Start Deckbuilding — $49.99 / month
Your account is created at checkout. After payment, this Agent opens when access is ready.
Already subscribed? Sign in · Account terms
Cancel future renewals from Account & Billing → Subscriptions.
What it writes
- Complete deck list with card counts
- Key synergy and win-condition notes
- Budget swaps for missing cards
How to use it
Include the game, format, budget, win condition, and a pasted card pool or deck list in your first message. Name matchups or cards you struggle against for more useful cuts.
What you bring
- Game and format
- Card pool or deck list
- Budget and preferred play style
- Know your game’s format rules
A good fit for
- Building a Magic Commander deck around a favorite legendary creature
- Cutting weak cards from a Pokémon Standard deck
- Making a budget deck from cards already in your collection
Ways to start
A few requests this Agent can handle.
Help me build a $100 Magic Commander deck around Meren of Clan Nel Toth. I want a sacrifice-and-recursion plan, and I own 40 black-green staples.
Review my Pokémon Standard deck: 18 Pokémon, 24 Trainers, and 18 Energy. It struggles against fast decks; suggest cuts and replacements.
I play casual Yu-Gi-Oh! and want a Blue-Eyes deck under $75. Give me a 40-card list using mostly cards from the latest structure deck.
Good to know
This workspace provides text assistance.
- Live tournament rulings or current ban lists
- Cannot check live card prices or format legality
- Deck suggestions depend on the card information you enter
Before you subscribe
What am I buying?
One monthly subscription that opens this Agent and every other Agent on Ai-GEN. Cancel from Account & Billing.
What happens after payment?
Checkout creates or uses your Ai-GEN account. When payment and entitlement are confirmed, the purchased Agent opens. Choose a starter task, add your inputs, and send your first request.
Can I cancel?
Yes. Manage cancellation under Account & Billing → Subscriptions. Review the status and cancellation details shown there before confirming.
Can I use the response in my work?
Use it as a draft to review and adapt. Verify calculations, facts, rights, and suitability before relying on it. Do not provide information you do not have permission to share.
Report This Agent
Tell Ai-GEN about broken behavior, poor performance, misleading capabilities, or a safety concern.