The calls go out through trade chat, "Premade AB, must have 250 resil." "Warlock looking for 5v5, have 400 resil, pst." It takes some doing but with Season 1 (soon to be Season 2) Arena gear available as PvP honor rewards, this is not outrageous. Changes on the public test realm that allow the purchase of Gladiator gear with Badges of Justice would make it still easier to acquire gear that is loaded with resilience.
Resilience was introduced along with the Burning Cruasde, and has had a massive impact on PvP gear. This combat statistic was designed to reduce the chance of being struck with a critical hit. It also reduces the damage caused by a critical strike. This stat was implemented in order to extend PvP combat.The presence of resilience is the main feature of PvP gear that sets it apart from PvE gear.