All Damage from Monsters' Hits inflicts Shock Monsters' Hits always Shock Monsters have 200% increased Effect of Shock

What this record tells you

This is a suffix modifier available from level 1. Its listed spawn tags determine which item families can naturally receive it.

Positive spawn weight means the modifier is eligible for that tagged item family. A zero weight blocks it for that tag. Weight is relative—not a simple percentage by itself.