Evocation’s Mod Damage Effect
Definitely one of the more important Mod Traits, Evocation gives a base damage increase to all mods. Unfortunately, some of the mods that don’t directly apply damage, like Hunter’s Mark, will also not see benefit from this. Others however, like Swarm, become significantly more powerful.
Previously this used to exclude summon mods, which have their own damage boosting trait, Invoker, however, the Subject 2923 Pre-Patch changed this so that summon mods are affected by all effects that also apply to mods in general.
How to Find the Evocation Trait
Evocation is acquired through an alternate completion of the Circlet Hatchery event found on Corsus. In this event, there will be large wisp hives that hang from the ceiling which you must destroy. There are also wisp creatures spawned by those hives that attack you, but are killed in a single shot.
To acquire Evocation, you will need to complete the event by destroying all hives, without taking any damage from wisps. Doing so will unlock Evocation along with granting you the Soul Ember ring, which is won by completing the event regardless of the alternate requirement for Evocation.