Talk:Magic/@comment-206.41.88.149-20130607161701

I guess that the magical aura color is telling the magic casting range of a pony. Twilight Sparkle and Shining Armor have magenta aura, and they can do powerful spells (magenta is the color of Magic after all...). Trixie has light magenta, meaning she can do somewhat strong spells. Rarity has a light blue aura, meaning she can't do spells Twilight would normally do.

Yellow aura is for everything mechanic. The gyrocopter of Tank the tortoise is spinning with a yellow aura when working.