[Edward resists the urge to flail, since doing so would a) look undignified and b) probably cause mass destruction around him. He did of course look embarrassed immediately.]

M-my lord! I was being serious! You know as well as any that I find magical studies challenging, to say the least. Mustering the power to add a lunaglyph effect to a brief attack with the blade is nothing compared to the concentration it would take to lift myself off the ground.