Field Marshal's Regalia is the Level 60 PvP Epic Set. It contains 6 pieces. Has set bonuses at 2, 3, and 6 pieces.
Field Marshal's Coronet
Field Marshal's Silk Spaulders
Field Marshal's Silk Vestments
Marshal's Silk Footwraps
Marshal's Silk Gloves

Marshal's Silk Leggings

Set Bonuses
Wearing more pieces of this set will convey bonuses to your character.
2 pieces: +20 Stamina.
3 pieces: Reduces the cooldown of your Blink spell by 1.5 sec.
6 pieces: Increases damage and healing done by magical spells and effects by up to 23.