The deck I used to go from arena 4 and up is

4.0 elixir cost.

Witch, Balloon, Hog Rider, Fireball, Inferno Dragon, Mini Pekka, Skarmy, and Goblin barrel.

I went from Arena 4 to Arena 7 fast af with the deck. Its a ok deck, i guess. Witch is a very good, annoying card. It melts swarms and her skeletons tank the witch for T H I C C U N I T S.

Goblin barrel paired with the hog, perfect. The hog tanks for the barrel dealing massive dmg. Hogloon is op. InfDrag is good for tanks units. Fireball is awesome for medium sized units. Mini Pekka deals massive damage and can be good paired with witch.

Skeleton Army is perfect for tanks and distraction. It can demolish thicc units. It is a nice deck and a sort of expensive, balanced deck lol. And yes I just wrote an essay lmao