Champion's Writs are one of the two reward options from completing the following daily quests of the Argent Tournament:
If players are already exalted with the racial capitals with whom they have earned the right to champion, they are better-served by choosing the instead. The sole purpose of Champion's Writs is to be exchanged for a factional Commendation Badge at a ratio of one writ per badge (worth 250 reputation with that faction) from the quartermasters in the Silver Covenant Pavilion or the Sunreaver Pavilion:
Though treated as a currency, Champion's Writs do not appear in the currency tab but instead act as a regular item.
Patches and hotfixes
Patch 3.1.0 (14-Apr-2009): Added