Deck builder
Build your next deck from the cards you own.
Pick your game, build a list from the cards you own, and see which copies are still missing. Keep your leader, commander or runes in their own deck zones, then try an opening hand before you reach for the sleeves.
Web builder · Pokémon, Lorcana, Star Wars Unlimited, Magic & Riftbound.
Try the opening-hand odds
Will you open a Basic?
At least one Basic Pokémon in the first seven cards of a shuffled 60-card deck.
12 Basics · 60 cards · opening seven
What do these odds mean?
Give your deck a reliable start.
With 12 Basics in 60 cards, 80.9% of first seven-card hands contain at least one Basic Pokémon. The other 19.1% contain none. This measures your first hand, before any mulligan.
Why does a Basic matter?
You need a Basic Pokémon to set up your Active Pokémon. Without one, reveal your hand, shuffle it back and draw seven again; that restart is a mulligan. Your opponent may draw an extra card for each mulligan you take beyond their own. Fewer mulligans can mean fewer extra cards for them.
What should I aim for?
There is no universal ideal. A higher Basic count reduces mulligans, but those slots also compete with Trainers, Energy and evolution cards. Choose Basics that help your plan; opening any Basic does not guarantee your preferred starter or a useful follow-up.
If you choose a 90% first-hand target, 16 Basics reaches about 90.1% in this example. Treat that as a target you can compare, rather than a required deck ratio.
| Basics | Open a Basic | No Basic |
|---|---|---|
| 4 Basics | 39.9% | 60.1% |
| 8 Basics | 65.4% | 34.6% |
| 12 Basics | 80.9% | 19.1% |
| 16 Basics | 90.1% | 9.9% |
| 20 Basics | 95.2% | 4.8% |
Make the next change with a reason.
Compare a few useful Basic counts, then practice opening hands with your actual list. Ask whether you can set up your attacker, find supporting cards and supply its Energy. This percentage describes a draw; it does not predict wins.
Rules: Pokémon TCG setup and mulligans. Percentages are calculated from the example above.
One opening hand, before any mulligan. Your deck in the app has its own counts.
In FoilFox
Build the list, then try the opening
Start with your game
Choose Pokémon, Lorcana, Star Wars Unlimited, Magic or Riftbound. Magic supports Constructed and Commander layouts.
See what the list needs
Review owned and missing copies by exact version. Assign cards to the deck zones your game uses and review their counts.
Shuffle and draw
Practice a hand from a complete draw pile, then draw one card at a time. Separate zones stay outside the shuffle. Pokémon also has opening-odds and energy tools.
How should I plan my deck?
Give each card a job.
Start with what you want the deck to do in its first few turns. Choose the cards that carry that plan, then add the resources, draw and search cards that help you reach them.
Build the opening, then the follow-up.
Ask what you want in your first hand and what should happen next. An early attacker, a setup card and a late finisher solve different problems. A list full of powerful cards can still leave you with little to do at the start.
Change a few slots and check the tradeoff.
Adding another key card can make it easier to draw, while cutting a resource or answer can create a new gap. Keep the deck size fixed when comparing swaps. Review the opening and follow-up together, then try the list in games and note where it stalls.
A useful test is specific: “Can I open my starter and support it?” gives you more to work on than “Is my percentage high enough?” Your game, format and card abilities decide which resources and follow-ups matter.
For Pokémon setup and deck construction, see the official rulebook. The planning questions here are practical guidance, not a scored recommendation.
Make the next change with a reason.
Owned and missing copies help you plan the next addition. In Review, Lorcana, Star Wars Unlimited, Magic and Riftbound have cost curves, resource counts, draw probabilities and before/after comparisons. Pokémon has its own odds, Energy and swap tools.
How do I read curves and resources?
Read the numbers against your plan.
Use the curve to ask when you can act.
A cost curve counts cards at each cost. If many need more resources than you usually have early, check whether your opening has enough useful plays. A lower average alone does not make a stronger deck.
Read resources for your game.
- Lorcana: compare printed ink costs with inkable cards. An inkable card may also be one you want to play, so the ratio leaves you a choice.
- Star Wars Unlimited: compare printed costs and early options. Main-deck cards can be resource choices; aspects and card abilities can change what you pay.
- Magic: compare nonland mana values with lands and their mana colors. A land count alone does not show whether your colors and timing work.
- Riftbound: read energy and power separately, and review domains in the separate rune deck. The main-deck draw pile excludes those runes.
Choose a draw question you can act on.
Choose a target card, how many copies you want to see and how many cards you will draw. Compare the chance before and after a swap. The calculation assumes a uniform shuffle and leaves mulligans, searches and card effects out.
In Review, “Use current list as baseline” keeps a temporary comparison for the active deck. Unknown metadata stays unknown, so a curve or resource count may cover only part of the list. Use the numbers to choose a test, then practice the hand and follow-up.
These are the web builder’s descriptive analytics for Lorcana, SWU, Magic and Riftbound. Pokémon has its own opening, Energy and comparison tools. Neither set of tools predicts win rate.
Which games can I build decks for?
The web builder supports Pokémon, Disney Lorcana, Star Wars Unlimited, Magic: The Gathering and Riftbound. It keeps game-specific deck zones and supports Magic Constructed and Commander layouts.
What does the odds example measure?
The chance of seeing at least one Basic Pokémon in a single opening seven, drawn without replacement from 60 cards. It does not include mulligans, search effects, or extra draws.
Can the checks certify my deck for an event?
No. Zone counts and owned copies are checked, and Pokémon has additional reviewed rule checks. For the other games, you assign the zones and review card types, colors, copy exceptions, rotation, bans and event requirements yourself.
Does practicing change my collection?
No. Shuffling and drawing practice cards do not add, move, or remove the cards you own.