is this good for A15

https://www.deckshop.pro/check/?deck=GobGang-Inferno-Bats-Graveyard-Miner-MagicArcher-Firecracker-Zap click on it also in the d eck i will have evo bats and firecraker

Nice, but don't always believe everything Deckshop says. Also, you need a big spell like fireball or poison to finish off towers. Also, you have 2 cards that handle swarms, so why not replace one of them with a high damaging card, like replace magic archer for mini pekka.

is this better https://www.deckshop.pro/check/?deck=Inferno-Zap-Bats-GobGang-Miner-GoblinDrill-Graveyard-Firecracker

Maybe too much swarm units, but yeah, something like that. Also it depends on your playstyle, so you might play well with a deck some people find bad and that's fine.