How to Build a Pokémon TCG Cube With Proxy Cards

TLDR

A Pokémon TCG cube is a reusable pool of cards that players draft from instead of opening booster packs.
Start with a clear theme and decide how Evolution lines, Trainers, Energy, deck size, and Prize cards will work before choosing hundreds of cards.
You do not have to make every card singleton. Extra copies of important Basics, Evolutions, and generic Trainers can make the draft much more playable.
Proxy cards are especially useful while balancing a Cube because you can change the card pool without buying every card first.

A normal Pokémon deck is built before the game. A Pokémon TCG cube turns that process into part of the game.

Instead of showing up with finished decks, players draft cards from a reusable card pool, build decks from what they picked, then play against each other. And unlike a booster draft tied to one set, a Cube can pull together cards from different expansions, eras, mechanics, and Pokémon types.

Pokémon itself has now published an example of the format. Its Hisui-themed Cube uses 540 cards and its own draft structure, showing just how much room there is to customize the idea.

But you do not need 540 cards to start.

In fact, I would build a smaller Pokémon TCG cube first, especially if you are using proxy cards. A smaller list is easier to print, sort, draft, test, and rebalance. Once you know which parts are actually fun, expanding it is easy.

What Is a Pokémon TCG Cube?

A Pokémon TCG cube is a curated collection of cards designed to be drafted repeatedly.

Instead of opening sealed booster packs, you shuffle cards from the Cube into homemade draft packs. Players pick one card, pass the rest, and continue until the packs have been drafted.

Afterward, everyone builds a deck using the cards they selected.

That sounds simple, but Pokémon adds a complication that games like Magic do not have to deal with to the same degree: Evolution.

Drawing a Charizard is not very useful if you never see a Charmander.

That means Cube design is not just about choosing good individual cards. You have to build an environment where the pieces can actually connect.

Start With the Kind of Cube You Want

Before choosing individual cards, decide what the Cube is supposed to feel like.

A few good options are:

A specific generation
A particular region
Vintage Pokémon
Modern Pokémon
One or several expansions
A competitive-style Cube
A low-power casual Cube
A Gym Leader-style Cube built around types
A Cube centered on favorite Pokémon
A Cube built around Evolution-heavy gameplay
A Cube focused on Basic Pokémon and faster games

Pokémon’s published example uses Hisui and Sinnoh as its theme. The important lesson is not that you should copy that theme. It is that a Cube gets easier to design when it has boundaries.

“Every Pokémon card I like” sounds fun until you have 900 cards that do not work together.

A narrower theme gives you something to cut against.

How Many Cards Should a Pokémon TCG Cube Have?

There is no universal Pokémon TCG cube size.

Instead, work backward from how many people you expect to draft and how many cards each person needs to see.

For example, if four players each draft three packs of 15 cards, you need at least:

4 players × 45 cards = 180 cards

For eight players:

8 players × 45 cards = 360 cards

That does not mean your Cube has to contain exactly 180 or 360 cards. You may want extra cards so every draft feels different.

Pokémon’s Hisui Cube takes another approach. It contains 540 cards, uses 13-card packs, and deliberately leaves some cards undrafted through a burn system.

For a first home Cube, I like something around 200 to 360 draftable cards.

That is large enough to create variety without turning every balance change into an evening-long sorting project.

Decide on Deck Size and Prize Cards

Normal Pokémon TCG decks contain exactly 60 cards.

Your Cube does not have to.

Pokémon’s published Hisui Cube has players build 40-card decks and play with four Prize cards instead of six.

That is a useful model for Cube because drafted decks usually have less consistency than constructed decks.

You could use:

Format	Deck Size	Prize Cards
Short Cube	30 cards	3
Draft-style Cube	40 cards	4
Constructed-like Cube	60 cards	6

These are house-rule choices, not official Cube requirements.

For a first Cube, 40 cards and four Prize cards is a sensible place to begin. It lets players build functional decks without needing an enormous number of playable picks.

Evolution Lines Are the Hard Part

This is where most Pokémon Cube design gets interesting.

Imagine drafting a Stage 2 Pokémon early, then never seeing its Basic.

That is not an interesting drafting decision. It is just a dead card.

You have several ways to solve this.

Include More Copies of Important Basics

Your Cube does not have to be singleton.

If Charizard is an important archetype, including two or three Charmander cards may be better than insisting every card appears exactly once.

The same applies to Stage 1 Pokémon when Stage 2 decks need them.

Singleton rules are a design choice, not a requirement.

Seed Evolution Lines

Another option is to give players certain Evolution pieces outside the draft.

Pokémon’s Hisui Cube does something similar by giving each player a chosen starter Evolution line before drafting.

You could create several small Evolution packages and let players choose one before the draft begins.

That guarantees everyone starts with at least one functional direction.

Use House Rules

Some Cube groups alter Evolution rules so drafted cards connect more easily.

That can work, but write those rules down.

Do not wait until someone drafts a Stage 2 to explain that your Cube treats a different Basic as compatible.

A Cube can bend the normal game. It should not make players guess how.

Do Not Make Trainers an Afterthought

A pile of interesting Pokémon does not automatically produce good decks.

Players still need cards that help them:

Draw
Search
Switch
Recover cards
Find Energy
Disrupt the opponent
Manage the Bench
Use Tools
Interact with Stadiums

Generic Trainer cards are particularly valuable because several different drafted archetypes can use them.

That makes them safer picks early in a draft.

A highly specific Trainer may be stronger in one deck, but a broadly useful search or draw card helps keep the entire draft from collapsing when someone misses a narrow synergy.

I would rather start with slightly too much generic consistency and trim it later than build a Cube where half the decks simply fail to function.

Should Basic Energy Be Drafted?

Usually, no.

Keep Basic Energy outside the Cube and let players add what they need after drafting.

This is also how many limited formats handle basic resources. The Hisui Cube example allows players to add Basic Energy while building their decks.

Special Energy is different.

If a Special Energy card creates meaningful decisions or supports an archetype, putting it in the draft can be interesting.

A useful split is:

Outside the draft

Basic Grass Energy
Basic Fire Energy
Basic Water Energy
Basic Lightning Energy
Basic Psychic Energy
Basic Fighting Energy
Basic Darkness Energy
Basic Metal Energy

Inside the draft

Special Energy
Energy acceleration cards
Energy recovery cards
Cards that reward particular Energy types

This keeps basic deck construction from becoming unnecessarily difficult.

Balance Pokémon Types by Draftable Strategy, Not Card Count

It is tempting to count 30 Fire cards, 30 Water cards, 30 Lightning cards, and call the Cube balanced.

That only works if those cards provide comparable decks.

Thirty cards can represent one coherent strategy or six unrelated ideas.

Instead, ask:

What does this type want to do?
What Basics support that plan?
Which Evolutions are realistic to assemble?
Which Trainers support it?
Does another type completely invalidate it?
Can players combine two types if one lane dries up?

You are building draft lanes, not just color-coded stacks.

If Water has three complete archetypes while Fighting has a few unrelated attackers, the Cube is not balanced even if the card counts match perfectly.

Singleton vs Duplicate Cards

Pokémon Cube designers sometimes like singleton lists because they create variety.

But duplicates can solve real problems.

Good candidates for duplicates include:

Important Basic Pokémon
Necessary Evolution pieces
Generic draw Supporters
Universal search cards
Switching cards
Common setup Pokémon
Cards central to the identity of the Cube

Duplicates are less attractive when they make a dominant strategy too reliable.

The test is simple.

If adding another copy makes more decks functional, that is probably healthy.

If adding another copy makes the same deck win every draft, it probably is not.

How to Make Draft Packs

The simplest system is to shuffle the Cube and deal random packs.

You might use three packs of 15 cards per player.

But pure randomness can create awkward Pokémon packs. One group may see too many Evolutions without Basics, while another gets overloaded with generic Trainers.

You can reduce that problem by loosely collating packs.

For example, each pack might contain a mixture of:

Basic Pokémon
Evolution Pokémon
Trainers
Support cards
Special Energy

Do not make every pack identical.

You still want uncertainty.

The goal is simply to prevent obviously broken distributions.

Why Proxy Cards Work So Well for Cube Design

Cube is one of the best uses for proxy cards because Cube design changes constantly.

Your first list will not be your final list.

You will discover that:

One archetype never comes together
Another has too many pieces
Certain Trainers get picked immediately
Some Evolutions stay in the pack until the end
A card that looked harmless dominates every game
Players misunderstand one of your intended strategies
A favorite card simply is not fun in the environment

If you bought every expensive card before learning any of that, you may end up paying for cards you remove two drafts later.

Proxying the early version lets you test the environment first.

For casual games, make the proxies clear and keep the physical cards consistent inside sleeves. PokémonProxy’s existing guide to Pokémon proxy cards, rules, and etiquette also covers the important distinction between casual testing and official tournament play.

Never represent a proxy as an authentic Pokémon card.

How to Test Your Pokémon TCG Cube

Do not try to balance the Cube by staring at the list.

Draft it.

Then write down what happens.

After each draft, ask players:

Which cards did you always want to pick?
Which cards did you never want?
Did your Evolution lines come together?
Was there enough draw and search?
Were any types obviously stronger?
Did you have meaningful choices during drafting?
Did your deck actually do what you thought it would?
Were games decided by strategy or by decks failing to function?

The last question matters a lot.

A strong deck beating a weaker deck can be fine.

A deck doing nothing for five turns because the Cube failed to provide basic consistency is usually not.

Change a small number of cards and draft again.

That is much more useful than rebuilding half the Cube after every session.

A Simple First-Cube Framework

If I were building a first Pokémon TCG cube, I would start here:

4 to 6 players
Roughly 240 to 300 cards
40-card decks
Four Prize cards
Basic Energy provided separately
Several clearly defined Pokémon strategies
Duplicate Basics where Evolution requires them
Plenty of broadly useful Trainers
A few exciting build-around cards
Proxy cards for the initial version
Three or four drafts before making major changes

That is enough structure to produce a real game without requiring months of planning.

Once it works, add more cards.

Common Pokémon Cube Mistakes

Too Many Stage 2 Pokémon

Stage 2 cards look exciting in a Cube list.

They look less exciting when nobody can evolve into them.

Every Stage 2 needs realistic support.

Too Few Generic Trainers

Draft decks need help functioning.

Do not force every useful Trainer into one narrow archetype.

Too Many Types

Supporting every Pokémon type equally sounds inclusive, but it can spread the card pool too thin.

A smaller number of supported strategies often drafts better.

Assuming Singleton Is Automatically Better

Singleton increases variety.

Duplicates increase consistency.

Pokémon often needs some of both.

Buying Everything Before Testing

This is exactly the problem proxies solve.

Test first.

Buy real copies later if you decide the Cube deserves them.

FAQs

How many cards are in a Pokémon TCG cube?

There is no required number. Pokémon’s published Hisui Cube contains 540 cards, but smaller home Cubes can work well. Choose a size based on your player count, draft format, and how much variation you want.

Do Pokémon Cube decks need to contain 60 cards?

Not necessarily. Normal constructed Pokémon TCG decks contain exactly 60 cards, but Cube is a customizable casual format. Pokémon’s Hisui Cube uses 40-card decks and four Prize cards.

Can a Pokémon Cube include duplicate cards?

Yes. Duplicate Basics, Evolution pieces, and generic Trainers can make a Cube more consistent. Singleton is an optional design philosophy.

Do players draft Basic Energy?

Usually it is easier to provide unlimited Basic Energy after the draft. Special Energy can remain part of the Cube when it creates meaningful draft decisions.

Are proxy cards allowed in a Pokémon TCG Cube?

For a private Cube, the group can agree on its own components and house rules. Keep proxies clearly identified and do not present them as genuine cards. Official organized play follows separate card-legality and tournament rules.

Conclusion

A good Pokémon TCG cube is not simply a pile of the strongest Pokémon cards ever printed.

It is a draft environment.

Evolution lines have to connect. Trainers have to keep decks moving. Types need real strategies. Energy needs a clear system. And players need enough flexibility to recover when the draft does not go exactly as planned.

Start smaller than you think you need.

Use proxy cards while the list is changing. Draft it repeatedly. Pay attention to the cards nobody wants and the strategies everyone wants.

Then adjust.

That process is half the fun of Cube. You are not just building a deck. You are building the little Pokémon format that all of the decks have to live inside.

References

The Pokémon Company International, Learn How to Build and Draft a Pokémon TCG Cube, published April 21, 2025.
Bulbapedia, Cube format (TCG), including details of Pokémon’s Hisui Cube structure.
The Pokémon Company International, Learn How to Build a Pokémon TCG Deck.
PokémonProxy.co, Pokemon proxy cards: what they are, rules, and etiquette.

Intent Sentence: This post helps Pokémon TCG players build a reusable Cube by explaining card-pool size, Evolution support, Trainers, Energy, draft rules, and proxy testing, so they can create a draft environment that produces functional and enjoyable decks.