GMS Unleashed - bugs and problems

Then the system is currently coded wrong.

Physical Avoidability is calculated as follows:
Dexterity + 2 * Luck + Avoidability From Equipments.

And if you actually read your phantoms skills it says base avoid. The skill descriptions take precedence over what they do because there are oftentimes more coding issues in how something works rather than its description.

I wouldn't give the descriptions precedence over what they actually do, at least, not the English translated ones, which may not accurately portray the original intent.

It's not an issue of coding. For this very reason, they have three different variables that they strictly adhere to, for clarity. evaR, er, and prop are handled exactly the way they're intended to, if Side Step, Shadow Meld, and Mirrored Target were meant to be Dodge, they would have given them a prop variable instead of an er variable. They've been this way since they first had a "dodge" effect, and they're still this way even as of the latest kMST patch.

It's not as if they didn't know how to make them dodge skills, either, there are several dodge skills that pre-date them, like Shadow Shifter, the original. If it was meant to be dodge, they would've made it just like Shadow Shifter, with a prop variable, but they didn't, because it's obviously not supposed to be.

And also, the reason your avoidability numbers are off is because you're using an outdated formula, from Big Bang, while they last changed the formulas during Chaos (I can't vouch for the exact accuracy of this formula, though):

I did some testing on KMS today and determined the new defense/accuracy/avoid formulas (for Chaos) to be as follows. These should be very close to the actual formulas if they are not exact.

Weapon Avoidability: 0.2 STR + 0.6 DEX + 1.4 LUK
Magic Avoidability: 0.2 DEX + 0.6 INT + 1.4 LUK

As you can see with the before and after (adding 33 points to STR), STR affects Avoidability, which it should not according to your formula, and your formula fails to calculate the correct avoidability that my character has both before and after.

 Before

 After

There's no character cards, no Blessing of the Fairy or Empress's Blessing, no equips that give avoid, I didn't even add to any of the first job skills.