Lingering Dragoncrest Ring +1
Increases spell duration. Can be dropped by the Desert Sorceress enemies in Earthen Peak.
Lingering Dragoncrest Ring +2
Increases spell duration. Received after killing 100 Black Phantoms.
Old Sun Ring
Explodes at damage threshold. Found in Shaded Woods. At the Ruined Fork Road bonfire are three paths. Take the foggy, rightmost one. Hug the right side of the area until you come upon the chest that contains this ring.
Easier to connect to players who chose the same god. Can be purchased from Sweet Shalquoir in Majula.
Northern Ritual Band
Increases spell use, but reduces HP. You can find this in the lower, flooded part of Sinner's Rise. When you step off the elevator and into the water, enter the first alcove on the right. You can discover a rather large fake section of the wall interacting with the back section. Step outside, then turn left to pick this off a corpse.
Northern Ritual Band +1
Increases spell use, but reduces HP. Can be purchased from Carhillion of the Fold in No-Man's Wharf.
Northern Ritual Band +2
Increases spell use, but reduces HP. You'll find this inside Aldia's Keep proper. Head to the second floor, and go behind the stairs. Some spirits will burst from the mirrors, so take them out before looting the corpse back here for the ring.
Increases poison resistance. Found with a Pharros' Contraption in Earthen Peak. See our Dark Souls 2 Pharros' Contraptions guide for more information.
Can also be purchased from Cromwell the Pardoner in the Brightstone Cove Tseldora chapel.