Actually, you're still a bad-ass, you're just not Hydaelyn's bad-ass. You're now Midgardsormr's bad-ass. And your bad-assery was never really connected to the Blessing of Light. Bigger spoiler than Heavensward...
...you are a Hydaelynian 'Ascian'. The source of your bad-assery is the Echo. It's what keeps you from actually dieing when you, well, die and keeps primals from tempering you. Avere is the proof, rest his jerk soul. You've died all over the world and in dungeons countless times, like Avere, but unlike Avere you have the ability to retreat to an aetheryte and be restored. This is an ability that predates the crystal farming you did throughout 2.# suggesting the Echo is NOT connected to the Blessing of Light, as evidenced by Minfilia given she didn't do ANYTHING except look pretty in all of 1.# and 2.#. You learn alot about this in the Leviathan arc, unless you were skipping the cutscenes.