This is a form of magic that Asra is entirely unfamiliar with, and despite himself he leans closer to watch what Greyjay is doing, his gaze relentlessly curious and focused on everything the other man does.

At the request he extends his hand, long fingertips smeared with his own blood. "Is this enough?"

If need be, it's easy enough to collect more from where it's drying on his arm. He watches what Greyjay does with it, and it occurs to him that this magic isn't too different from what Muriel works with. "A kind of protection spell?" he guesses.