I think for blank a more fitting partner would be, at this stage, tutsutomon (Which turns into gabumon then garoromon, I'm horrible at spelling let alone dimonname spelling...) Mainly because in Digimon augumon was given to tia the leader, who's symbol was that of courage, blake isn't really a courageous person, her arc seems to be more in line with mat as he was the cool loner who needed to learn to trust people.