After finishing the deal with Toz, hassandra spared no time in getting him to help her. The first thing that they needed to agree on was whether to devise an effective countermeasure against the ability Toz called 'mana vision' or if they should figure out a way to make it so that mana vision or similar abilities couldn't see her strings.
Devising a countermeasure was more like coming up with a plan of action for an occasion where Hassandra knowingly or unknowingly encountered a person that could do what Toz did. It could be changing the way she moved her strings or whatever. It might be the easier option, but it was also the weaker one since there would probably be a limit to what that kind of preparation could accomplish.
However, improving Hassandra's magic would change and strengthen the strings on a more fundamental level, which would be better for her long-term development, even if it might be more challenging to do.
