There are plenty of mastery that give characters special crit up % and the character has no special damage moves. These relics are based off the characters tags e.g tank,healer, support .... And also the characters main stat e.g agility, strength,tactics , which means that the characters kit has not been taking into thought this is just gear 13+7 ,just because it's a specific relic which is meant to be unique to the toon doesn't mean they made the stats toon specific.
Some characters will benefit more than others basically the devs have never played this game.