The deck builder
Build a deck from the full catalog, watch its numbers live, save it on your device, and open it in the game.
The deck builder lets you assemble any 8-card deck from the live card catalog and take it straight into Clash Royale.
Pick 8 cards
Tap cards from the catalog to add them. Average elixir and the 4-card cycle cost update live as you build.
Check the stats
Once 8 cards are chosen, you can jump to that exact deck's stats page — if Clashest has analyzed battles with it, you will see its real performance.
Save it
Saved decks are stored in your browser on this device (no account needed). They stay until you delete them or clear browser data.
Open it in the game
The copy button uses the official copy-deck link — on a phone it launches Clash Royale with the deck ready to save. See copying a deck.