Blue Sentinels

The Blue Sentinels are a covenant in Dark Souls II, devoted to protecting members of the Way of Blue covenant.

Requirements
Must speak with Blue Sentinel Targray in the Cathedral of Blue with a Token of Fidelity in your inventory.

How to Join
Talk to Blue Sentinel Targray. He is located on a balcony overlooking the ocean in the Cathedral of Blue directly after the Old Dragonslayer boss fight. The player must have successfully assisted another player in killing a boss by using the White Sign Soapstone and receiving a Token of Fidelity or find the one in Huntsman's Copse along with a Pharros' Lockstone on a broken pillar, otherwise Blue Sentinel Targray will simply dismiss the player.

Benefits

 * After joining the covenant, Targray can teach the player the Duel Bow gesture, he also sells a few common weapons like the Halberd, healing items like the Monastery Charm, and the Holy Water Urns.
 * He also sells a unique miracle, Heavenly Thunder.
 * The player receives the Guardian's Seal, which will allow them to be summoned as a Blue Phantom by a Way of Blue covenant members in order to help them defeat the invader that triggered the summon.
 * Members of the covenant also have the ability to use Cracked Blue Eye Orbs to invade the worlds of the guilty
 * With a Token of Fidelity, players can interact with the statues near the Blue Cathedral bonfire to enter a PvP arena to fight other members of the Blue Sentinels.