Quote Originally Posted by Winterfell View Post
My level 27 Assassin has a Dex of 80 and level 10 Claw Mastery, giving a +120% bonus to accuracy. I'm in Act V and have a 68% chance to hit Crush Beasts and they have a 93% chance to hit me. Is something going wrong here or is it actually meant to be like that? Am I too low a level?
In the absence of any + Attack Rating bonuses, your level 27 Assassin with 80 Dexterity has 365 (80-7 * 5) 365 base AR, which +120% AR from level 10 Claw Mastery increases to 803 AR. Crush Beasts in Normal are level 38 with 200 defence:

% Chance to hit = 100 * 2 * (27 / 27+38) * (803 / 803+200) ~ 66%

That's slightly lower than the chance to hit displayed (which should still be ~66% even with the erroneous second application of the Assassin's class constant of 15), so you probably have some small +AR bonus (+39, 888 AR displayed?).

Crush Beasts in Normal are level 38 with 996 AR, so to display a 93% chance to hit your level 27 Assassin, she should have ~256 defence; if she doesn't, then something is wrong.