인첸할 때 템이나 화염숙련으로 화염피해증가 적용되고,
무기로 공격할 때 화염피해증가 또 적용된다네요.
따불이라니, 개사기네…

Skill level applies when cast. +% Fire Skill Damage from Fire Mastery and items is also applied when cast before adding fire damage to attacks.
+% FSD also applies to melee attacks at time of attack, so it will be applied a second time to melee fire attack damage added by Enchant, Holy Fire and items.

출처는 요기
http://theamazonbasin.com/wiki/index.php/Enchant

질문 글은 요기
https://m.inven.co.kr/board/diablo2/5735/1625060