Enrollment
Enrollment reduces the cost of converting units, and the guide calls it a build-defining Rat lore. Its value is tied to the clan’s plan to field large groups through conversion.
How it works
The guide states that Enrollment reduces unit-conversion cost by 30%. It presents the lore as central to making large conversion waves more affordable, alongside Rat’s economic scaling. The guide gives an example conversion cost, but that figure is build-specific and is not needed to describe the lore’s supported effect.
When it helps
Take it when conversion waves are central to the plan.
Your next step
Military Strategy is another later choice for improving damage.
Read the supporting references
Rat clan lore progression and related unit development, limited to the build choices and effects shown in the supplied Rat guide evidence. Guidance explains the referenced mechanics; it is not a tested damage ranking. Check the stated edition and source version before applying a patch-specific detail.