Well, that's 25 gp a scroll, and only 1 hit point for first level spells. So it doesn't sound practical.
BUT...
You could take the Bladebound Magus archetype and Two Weapon Fighting with a short sword black blade, and later stack things like Weapon Finesse (you already have a 15 Dex if you go TWF), Weapon Focus and (at character level 11... oops!) Weapon Specialization if you REALLY want to be silly.
That way you can use a scroll blade in your off-hand when you're not casting in combat. ;)