Units with this rule add +1 to its LD if it has Unit Strength 10 or more, +2 LD if it has Unit
Strength 15 or more, and +3 LD if it has Unit Strength 20 or more. To calculate the LD of a unit with Strength in Numbers, first determine the unit's LD as normal and then add the LD
bonus of the unit to this value, up to a maximum LD of 10.
Note that a Skaven General confers his basic LD and then units modify it with their own Unit Strength. Any bonus from the Unit Strength of the General's unit is not passed on to units within his Inspiring Presence range.