Hello, I am an arena 11 player and I wanted to share a few of mine decks with you, I am a free to play player and it was quite easy to get there with a bit of skill.So here they are:

Good old annoying rg eb deck:

Royale Giant, Elite barbarians, Archers, Log , Zap, Fireball, Skeleton, Minions

Basically got to 4k with this deck , it is quite easy to use the main cards are the spells eb and rg all you gotta do is use them and defend against your enemies

Second deck is a x-bow deck: 

x-Bow, Ice golem, Archers, Mega Minion, Ice spirit, Fireball, Log/zap, Inferno Tower

Basically you have to defend with inferno and ice golem and attack with xbow ice spirit ice golem archers and the spells.



I hope you will reach legendary arena aswell, Good luck in the battlefield.