When equipped with "Illusion Chain Mail", Atk + 30.
If refine rate of each is 7 or higher, Cri + 5.
If the sum of refine rate is 18 or higher, increases Storm Blast damage by 20%.
If the sum of refine rate is 22 or higher, increases physical damage against water property enemies and fish race monsters by 15%.
i also tried with normal chain mail  just in case wrong combo just like before but it seems not present also