Clash Royale war deck builder
Four clan war decks, 32 different cards, all from your own collection. Place the cards you want in any deck and the builder fills the rest.
How the war deck builder works
- Enter your player tag. The builder reads your cards, levels, evolutions and heroes through Supercell's official API.
- Place any cards you already want, in any of the four decks. Fill a whole deck and it is kept exactly as you arranged it.
- Choose Ace to make your first deck as strong as possible, or Balanced to share your best cards evenly across all four.
- The builder makes the decks one at a time, each around its own win condition, and no card appears in two decks.
- Swap in suggested cards with one tap, then open each deck in Clash Royale.
Why clan war decks need 32 different cards
On a Clan Wars battle day you play with four decks, and a card used in one of them cannot be used in another that day. That makes a war deck set a different problem from a single ladder deck: your best cards can only go to one deck each, and the fourth deck is built from what is left. A clan war deck builder has to plan all four together.
Built on your levels, not a copied list
Copying four meta decks rarely works, because they share the same popular cards. This builder starts from what you own. Every deck is steered by what top players run with its win condition, measured daily from top ladder battles, and checked against your King Tower level so an under-levelled card does not carry a deck.
Swap suggestions after the build
When all four decks are ready, the builder looks for cards you own that no deck used and that players on a deck's win condition run far more often than one of its cards. Each suggestion is a single tap, can be undone, and never puts a card in two decks. If you own a card's evolution or hero, it goes into the matching slot.
Questions
What is a Clash Royale war deck builder?
It builds the four decks you play on a Clan Wars battle day, with no card repeated between them, from the cards you own. ClashDeckster builds them around your card levels, evolutions and heroes.
Can the same card be in two war decks?
No. Across the four decks every card is different, 32 in total, the same rule Clan Wars uses. If you move a card that is already in another deck, the builder asks before taking it out of there.
Can I keep a deck I already play?
Yes. Place its eight cards in one of the decks and it is kept exactly as it is. Its cards are left out of the other three.
What is the difference between Ace and Balanced?
Ace gives your first deck first pick of your strongest cards, for a deck you can rely on. Balanced shares your best cards evenly, so all four decks are about as strong as each other.
How do I get the decks into Clash Royale?
Each deck has a Copy button that opens it directly in Clash Royale. A deck with an empty slot cannot be copied until all eight slots are filled.
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