Cabal's NEW Damage Formula (for real. yes, for this patch.)

[Shimura]

you should try to add penetration, b/c my FA 1950 m.atk, 75 amp 190 CD use Fire Lance to hit a wiz whose 2.3k def, I deal about 850 mean while base on your formula, it's only 599 (ignoring dr) That wiz is honor 15, no resist bike or drie eog or resist stuff.
My calculation : 1950 x 2.7 x 18% x 0.25 x2.53 = 599

850? isn't that a crit?

What do you hit when you don't crit? Keep it simple by only using non crits.

I have not tested yet with magic classes so it could require a change in the formula.