While Hermione had cast her share of dubious hexes and even used the Unforgivables before in self-defence, those spells had never come naturally to her, requiring a great deal of intent and concentration to cast them properly. But with Bellatrix advancing, wand at the ready toward the man who had jumped between them to spare Hermione the agony of the Cruciatus, who held the entirety of her heart, there was suddenly nothing easier than calling upon her magic with the intent to protect Draco by any means necessary. In a move that was all instinct, she brought her wand hand around, firing off a non-verbal  Avada  as she spun to avoid the spell already rocketing toward her in return. Two more left her wand as her spin transitioned seamlessly into a crouch, the second finding its mark as a flash of green whizzed past Hermione's ear, slicing off the end of a curl as it missed her by half a second. 