Given that it counts as a full counter (The only other traits that can count as a full conter are racial bonuses), and she can have 2 others (Perfect situation would be to have 6 common abilities countered with 6 followers, and Garona having 2 racials for each of the other 2 followers, thus allowing you to have a 3 man team that can counter practically everything), its fairly decent. Harrison's trait should be made into an item though.
Can I assign her to the mine?