Who gives out the tfa quest in argent tourney

Q u o t e:
please someone tell me where it is in argent tournament and what chain quest i have to do to get it, i have been looking for years now.

Assuming TFA stands for Threat From Above, Dotalicious, you can pick up that quest after you have completed the quest The Black Knight's Fall.

You have completed the Black Knight's Orders, so you'll want to speak with Crusader Rhydalla and pick up the next quest.