Hmm?
Hidden-street damage calculator
Thieves:
Dagger and Throwing Stars - (LUK * 0.9 * 3.6 * Skill Mastery + STR + DEX) / 100 * Weapon Attack
Lucky Seven (Maximum Damage for 1 Throwing Star) - [((5.0*LUK)/100)*Weapon Attack)*Damage Percentage]
Lucky Seven (Minimum Damage for 1 Throwing Star) - [((2.5*LUK)/100)*Weapon Attack)*Damage Percentage]
-If I remember right, dex adds .8 accuracy, luck adds .5 per point. Either way, you'll have more than enough if you just pump luck for damage.
-For avoidability, adding luck is superior to dex.
-Int is useless to a thief. It adds magic attack and defense, but you don't attack with magic, and it's not worth spending the points for defense.
-Strength should only be added if it's an equip requirement.
-If you can't figure out from the formula, luck and weapon attack are the damage multipliers. Dex and strength are side effects, added for equip requirements.