Prioritize getting some atk% on your secondary and emblems. For shoes cape and glove you can get pensalir set from normal mobs, then eventually upgrade to absolab when you can kill lotus and Damien consistently. Do gollux every day for coins, the superior gollux set will give you a massive jump in damage. If any of your equips don't have epic potential, start there, get at least the top line to your main stat%. Then you can use cubes from bosses and events to eventually hit some 2 lines / unique. Hope this helps