This GK Miner Poison deck is very popular in the CRL 20-win challenge. It sits 3rd on the list of decks to complete it the most! - Clash Royale Deck Spotlight :
Any Tips on how to play this Deck? Miner poison is an archetype that I am not used to. : r/ClashRoyale
New Meta Miner Poison Deck - Featuring Royal Ghost | Clash Royale Guides