So do casual, ranked, or Normal/Expert Practice till you get enough gold to do arena a few times? do you also let bot pick deck or do you manually?
Ranked is the best since it allow you to gring gold and golden portrait in the same time. But since i don't use Hearthbuddy anymore i couldn't tell you if the results are good or not. Anyway, the best way is to do unranked/ranked to get daily gold (since practice doesn't give it) and then doing arena manually.