Hi Crafty_Thief,

You need to do the quests in a specific order. Please click these links for more information:

Spoilers

Tingalf quest

Once you wear the entire dragon armor set for the first time, the player character is blessed temporarily (that explains the glow) and also permanently gains one point in the skill, elemental strike.

Thanks.

"It is good to have an end to journey toward; but it is the journey that matters, in the end." -Ursula K. Le Guin www.hungersite.com