Council of Exarchs

so to get this achivement i need to start an alliance, gear that char and farm rep with him as horde? why is this not linked to frostwolf rep

Note, as it says above, that this achievement grants you the title [title=420], even though it does not say so in-game.

If you earn this achievenemt, you'll get a in-game mail:

From: Exarch Naielle
Subject: The Exarchs Stand Behind You

<name>,
From the gardens of Karabor to the treacherous shores of Gorgrond, from the battlefields of Ashran to the towers of Highmaul and everywhere in-between, my rangari scouts around the world have noted your heroic deeds. Thank you for all that you have done for my people. Know that wherever the draenei tread, you will always have a friend.
- Exarch Naielle
Rangari Prime of the Exarch Council