its Lightning damage is not converted by medal’s skill modifier, more info here Secondary Skill Modifiers
but you could consider puting more points to it, especially with this belt Trollheart Waistguard - Items - Grim Dawn Item Database
@Cruizable here’s a link with points spent in Torrent using this other belt - Conjurer, Level 100 (GD 1.1.9.7) - Grim Dawn Build Calculator
maybe a good idea actually since it has such goods resists
btw if you don’t find the helmet, use 75 / 94 level Fettan Mask.