The official Supercell Store: Buy Diamond Pass (10% cheaper) Buy Gold Pass (10% cheaper) Tell me more Deck Check is the best tool to spot mistakes in your deck and find ways to improve it. Check your deck too on www.deckshop.pro! Best Cards for Grand Challenge in Clash Royale - RoyaleAPI Cards Best Cards 1d 3d 7d 14d Grand Challenge Rating All Win-Conditions Spells 1 71 Rating 6% Usage +1.5 % 59% Win +0.7 % 60% CWR 2 70 Rating 6% Usage +0.6 % 59% Win +1.3 % 59% CWR 3 69 Rating 11% Usage +2.8 % Lol a high win rate deck doesn't necessarily mean high win rate in challenges for YOU. I would suggest you use a deck your extremely familiar with. The 20 win challenge is going to be littered with meta decks, so in theory if your using a deck you've played thousands of times that would be your best bet. Not a brand new deck you've never .

clash royale deck win rate