Avoid Formula

(55+2*lvl difference)*mob avoid/15 = accuracy needed to hit 100% of the time.

This formula works for both characters and monsters. Monsters have an accuracy stat found on poof.ml.

Use that against your characters avoid and level difference to determine the accuracy the monster needs to hit you.

Take that accuracy number and compare it to their accuracy stat to determine their percent chance of hitting you.

No character can 100% Dodge a monster, but the chance get down to like .01% or something stupid like that.

 

Option 1: Add dex for both min damage and avoid (less efficient in increasing avoid compared with adding luk)
Option 2: Add luk for purely avoid (but no min damage increase, what if weapons with op speed/jump but low weapon attack are added?)

Edit: Some said avoid aren't necessary a good things, they told me if you are familiar with the map, you can time the knock back of the monster to send you flying to your desired direction, working that towards your advantage.