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Clash Royale deck builder
Tap a card to add it. The elixir curve and synergies update in real time.
0.0How the deck rating works
Pick any eight cards and the builder rates the deck instantly across four axes: attack, defense, synergy and balance. Under the hood it checks your elixir curve, win-condition and air-defense coverage, spell mix, and the card pairings that historically win together.
The rating is calibrated against live battle data: when a similar deck is performing well in the current meta, that shows up in the score and in the suggested cards. Use "Complete deck" to auto-fill the remaining slots, or "Meta deck" to start from a proven list and customize it.
Popular decks to start from
Frequently asked questions
Is the Clash Royale deck builder free?
Yes — building, rating and copying decks is completely free. No account is needed; signing in only adds extras like saving decks to your profile.
What does the deck rating mean?
The rating scores your eight cards on attack, defense, synergy and balance: elixir curve, known card pairings, counter coverage and how similar decks actually perform in live battles. It flags problems — like no win condition or no air defense — as you build.
Can it suggest cards for my deck?
Yes. As you add cards the builder suggests the strongest completions based on synergy data and the current meta, and the "Complete deck" button fills the remaining slots automatically.
Where does the deck data come from?
From real Clash Royale battles, collected continuously. Ratings and suggestions are recalibrated as the meta moves, so the advice follows every balance change.
0.0 · 25%0.0How the deck rating works
Pick any eight cards and the builder rates the deck instantly across four axes: attack, defense, synergy and balance. Under the hood it checks your elixir curve, win-condition and air-defense coverage, spell mix, and the card pairings that historically win together.
The rating is calibrated against live battle data: when a similar deck is performing well in the current meta, that shows up in the score and in the suggested cards. Use "Complete deck" to auto-fill the remaining slots, or "Meta deck" to start from a proven list and customize it.
Popular decks to start from
Frequently asked questions
Is the Clash Royale deck builder free?
Yes — building, rating and copying decks is completely free. No account is needed; signing in only adds extras like saving decks to your profile.
What does the deck rating mean?
The rating scores your eight cards on attack, defense, synergy and balance: elixir curve, known card pairings, counter coverage and how similar decks actually perform in live battles. It flags problems — like no win condition or no air defense — as you build.
Can it suggest cards for my deck?
Yes. As you add cards the builder suggests the strongest completions based on synergy data and the current meta, and the "Complete deck" button fills the remaining slots automatically.
Where does the deck data come from?
From real Clash Royale battles, collected continuously. Ratings and suggestions are recalibrated as the meta moves, so the advice follows every balance change.