Talisman of Arathor (level 28)

The Talisman of Arathor is an Alliance faction quality PvP reward trinket that can be obtained through Arathi Basin. It is available at various levels, and can periodically be used to absorb a certain amount of physical damage. Along with the and the  /, it is one of the few trinkets available to low level Alliance players.

Source
The Talisman of Arathor (level 28) can be purchased for from  outside the Arathi Basin battleground entrance.