What is a copy-deck link?
A Clash Royale copy-deck link is an official link.clashroyale.com URL that imports eight cards and a Tower Troop — not Evolutions or Hero form.
A copy-deck link is Supercell's HTTPS handoff at link.clashroyale.com. Clash Royale already uses it in-game. DeckBeacon puts one on every ranked deck, re-validates it at render time, and does not invent a second protocol.
On a phone with the game installed, opening the link offers an import. On a desktop, the same URL is useless in the browser — scan the QR code instead. Desktop guide.
The point of using this scheme, instead of a custom deep link, is that it survives game updates. Unofficial import tricks go stale. The documented cost is that forms do not travel.
What travels
- Eight base card IDs
- The Tower Troop (Tower Princess, Cannoneer, Dagger Duchess, Royal Chef, …)
Towers are part of the ranked identity. If a snapshot list uses Cannoneer and you only own Tower Princess, the game will fall back. Unlock the troop or pick another list. Tower Troop.
What does not travel
That gap is the format, not a DeckBeacon bug. RoyaleAPI, Stats Royale, and a broadcast QR using the official scheme have the same limit. DeckBeacon lists the cards you must set by hand on the deck page and on the row, always visible. Gating that disclosure would put a gate on copy.
Validation
validateCopyLink runs before a page is willing to render a URL. A catalog that cannot produce a legal link does not ship one. Typing the URL by hand is how a single character breaks the fixture — use tap or QR.
If tap does nothing, you probably do not have Clash Royale on that device. Troubleshooting.