>>791
You initially asked for information about the elemental damage modifiers.
Of course there is a random element in how damage is calculated.

ATK - 85~123
means pick a random number between 85 and 123 (inclusive) to use as the base attack before modifiers.

Crit 5%
means 5% chance to have a critical hit or critical defense.

"Mod" will be used to notate how many times the weapon or armor has been modified.
You will be able to modify weapons with weapon crafting and marimo.
You will be able to modify armor with armor crafting and marimo.