Accuracy
From Tales of Maj'Eyal
Accuracy determines your character's ability to land physical attacks. It is the counterpart of Defense. It uses the same mechanics as saving throws to determine if an attack hits.
The Accuracy formula is:
4 + (Dexterity - 10) * 1.00 + Luck * 0.40 + Accuracy bonuses from Combat Accuracy + Accuracy bonuses from equipment + Accuracy bonuses or penalties from effects
Raw Accuracy is rescaled to produce the final Accuracy value.