What it says in the title. This is a tier 1 mod and is massively more effective than than its equivalents. Vanguard has a similar mod that only adds 2 physical resist alongsode the armor and stagger resistance. The amount of resist given is equivalent to much later game mods which seems bonkers. What this means is that anyone with access to amazon tech can easily negate the damage of a significant chunk of the rosters of Assembly and Syndicate. Amazons don't even have arc weakness on any units. This is a large imbalance and should really be nerfed to 2 arc resist.