User blog comment:Gundam Legilis/DDI In Depth - The characters/@comment-3146930-20140915202147

I under the impression that her outfit had collapsible weapons in it and she only used the fire as a type of distraction as she pulled them out. I slowed down the video to .02X the play rate and there is so much fire that it is impossible to see where the swords come from. All I can tell you is that she pulls out two things of that spray-Dust container as she spins around. The Dust ignites and when the fire fades she has swords. It may be possible that she can use her Aura to manipulate the Dust in those containers to take on any shape she wants. This wouldn't explain why her swords and arrows are black when the crystals she fires at Ruby are semi-clear however, unless it is a different type of Dust.

The same could be said of her bow. She once again does that spinning fire move to make her swords and combines them to form the bow. Then as she is flipping in the air, she literally makes three arrows out of ash or fire. This time however she is not see using any kind of spray-Dust container. Only thing I can think of is that her Semblance allows her to control the various forms of fire. She can make super hot explosions like in her fight with Glynda or she can somehow forge it into a solid object like the arrows and swords.