Maybe add some combat oriented bonus to it and re-name it? I can totally identify with the mandatory feel to it, it's a sizable bonus in exp act 1.... I always put it on casters because I feel they can live with it, whereas martial oriented characters are so talent starved.
Something like % bonus against beasts (think source hounds, the void wurm, etc.) would be the easiest (though not most creative) way to adjust it.
