This page discusses the HonorBuddy tags:
<TargetMaxLevel>
<TargetMinLevel>
These two tags are used in conjunction with a <GrindArea> element to select which mobs Honorbuddy should institute initial aggression.
Things to know:
* If unspecified, TargetMinLevel defaults to 1.
* If unspecified, TargetMaxLevel defaults to the maximum level allowed by the game world.
* TargetMinLevel should be less than TargetMaxLevel.
* If TargetMinLevel and TargetMaxLevel are the same value, then only mobs at that exact level will be selected.