So if i was to play on my main bnet account, but on a different region (Main on EU, bot acc on NA for example) Will my main account (The EU part of it) be banned too? Is it safer to just bot on a completely different bnet account?
If you get banned they usually just ban the Hearthstone portion of your account, so your wow, diablo, etc. isn't affected. And then you just call tech support and they'll usually just reset your hearthstone progress including any expansion purchases you might have made(even if you paid with real money they will reset your expansions which sucks). If you don't plan on botting other blizzard titles then it's fine to use the same main account, but if you might I would consider making a new bnet account because being caught for cheating in one game may raise some red flags about the legitimacy of your other games' progresses.