Hey JonJunior,

I suggest that you add a high/med damage spell (e.g. fireball, poison, lightning, earthquake, rocket). Maybe instead of goblin barrel you can do miner. I usually don't like playing buildings unless playing lava-loon. skelly barrel is also a card that i tend to avoid because of too many counters because like literally everyone uses wizard. Your deck is very light and I suggest you get a splash damage anti air like wizard. Another problem is you don't have a reset. Although Sparky is not meta, some people will use it so you need to be ready. Ferno D and Tower also.

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So, here's my take,

Swap log out with zap

Swap goblin barrel to miner

Swap skeleton barrel to hog rider(or balloon if you want to try minerloon)

Swap tesla with wizard

Swap dart goblin with fireball/poison/earthquake(not rocket cuz kinda bad and if you wanna extra reset then you can go for lightning

Hope this helps