Prowling Magus and Congregation

The Prowling Magus and Congregation is a boss in Dark Souls II.

Location
This boss is found in Brightstone Cove Tseldora in a ruined Chapel, before the Chapel Threshold bonfire.

Description
This boss is actually a collection of enemies. The Magus is a Hexer while the Congregation is made up of hollows and two undead Clerics. The Magus has his own health bar but the health bar of the Congregation counts for all of the hollows and Clerics.

Summoning
Benhart of Jugo can be summoned to this fight, but his summon sign is near the tents at the first bonfire of Brightstone.

Strategies
The difficulty of this boss does not come from the boss itself but due to the number of enemies. The first thing to do is to kill the Clerics first as they can fling Lightning and can heal surrounding enemies. There are two variants between the hollows, standing and crawling. The standing ones are faster and can surround the player but the crawling hollows will often be hindered by the benches placed around the area. Any attack that has AoE helps, for example the halberds running attack (be weary of durability as hitting multiple enemies all at once will degrade your weapon quicky), or the Chaos Storm (Dark Souls II) pyromancy. Using the benches are good way to block the Cleric's lightning bolt attack and provide time to heal. A well-placed shot of Soul Appease can end with most of the Congregation in one hit. The Magus himself is not a threat, he has very little health and his most dangerous attack is an AoE attack, every other attack is easily dodged.

Magus

 * Dark Pulse: An area of effect attack that he does when the player is close to him. Causes knockback.
 * Dark Orb: He will fling a Dark Orb at the player.
 * Dark Shot: A fast but small spell that he will fling at the player.

Clerics

 * Lightning Bolt: The clerics will ring their bells and fling Lightning at the player.
 * Heal: Clerics will heal all the enemies around it, including itself.

Hollows

 * Strike: All Hollows whether standing or crawling will just try to hit the player.