Of course, Reedus! I knew the type of magic was too obvious for someone not to have it already... Thank you for reminding me of him! The moment I posted my previous reply I thought to myself 'Waaait a minute... there was some round guy that could do it...'
My original thought was to have magic similar to his, but it's ok with me if you tell me that's too close to cannon. In fact, the idea of having lost script magic that would allow my character to summon animate objects by writing them, like the example you gave with 'Bear' is highly attractive. Of course I would strictly limit it as you said - only things the character knew inside-out could be casted (and work), meaning that even if she wrote 'Train' and a train that looked like any other train appeared, the summoned one would still not function unless she knew exactly how the inner mechanism of trains worked.
So either drawing or writing things to life is something I'm strongly leaning to at the moment, but both would be limited by what the character knows through and through.
Azure Blossom or Dragon sound great in my opinion! It could be the full name of the guild, while only one word is used as the shorter version.