For stats, get enough strength to hold your next item piece. From here, you have 2 options. Either more damage, or more health. Stats also depend alot on whether you have a pet, or whether you have someone to tank for you. If you have no easy way to avoid taking damage, I would suggest getting enough point into strain to boost your hp enough to take 5 hits from a mob. Another way I use to test my hp, was to test on Legknock. If I could handle his damage, I had enough.
The other way is tonnes of mana. This works best with Poison. The more mana you have, the more targets it hits. More mana is also best on solo mobs.
Since the cash shop weapons are cheap here, I would suggest going 1:2 wisdom strain till around 3k mana. Then rest into strain.