The Blue Dragon Flame also known as Blue Phoenix is a retractable blades that serves as Leanarda Torunn's main weapon. The swords has several features, most notably the ability to become inflamed a blue color flame. (The two pics are not mine but there temporary)
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First Sword
The Second Sword
History[]
When Lea was on her own with Shira they discovered crystals in a cave, and that gave Lea an idea of making a two swords out of them and make it stronger as gronckle Iron.