17 Question

Can you all think for names for the heavenly beasts Alex would summon?

And yes thank you all for 1k collections...

Oh by the way when rereading the novel and looking at the anime, I had a question I wanted to ask of:

In the anime and novel both during the summoning of black monarch Leen conjured up the magic circle but she doesn't have an aptitude for dark magic. Anyone knows why?