Easily 30 Dex or lower, as you start out you'll want a 10~ Dex bathrobe, *Easily made for 350k Mesos.* This will last you until level 50-60. Then, at 50 you should maker Dex equips you should be able to squeeze quite a bit of accuracy out of this, You can do this until 80, At 80 your High Tier Potential items become available. Which means you can find some amazingly high accuracy top/bottom combos. Also Refer to this to see how much accuracy you need for what level you will be. http://www.screamingstatue.com/accuracy/