He tilted his head, watching the two warily. Zadkiel may not be a fighter, but one didn't need to be to know how to operate a gun. He'd learned that trick very early on. "You both know I can't do that."
Smiling he curled his hand in Hellfire, letting it shape a nasty looking blade. He may have lost the one he'd been given, but he'd simply gone and forged a new one.
Then he rushed at Zadkiel, aiming to remove the gun from his brother's hand by either cutting at the hand Zakiel was holding it in, or cutting the weapon apart. He could deal with blades. It was the gun that bothered him.