RUMBLETiGER
Adventurer
Dragon Magic p.16, Draconic Aura feat, only prereq is character level 3, no dragonblooded required, no other feat necessary.Didn't Dragon Magic have a feat for any dragonblooded character to learn a single draconic aura (which may have required a second feat to actually obtain, I forget)?
IF you are the dragonblood subtype, the aura gains in power as you level. Otherwise the bonus is only a +1.
So, to get the most out of this, you need both be of dragonblood subtype, which you can gain via Draconic Heritage feat, requiring a Sorcerer level 1.
So, to make the most of of this, yes, you want both feats.