Revenant

Revenants are some of the toughest creatures out there(well that's what everyone says but after you've got level 12 they are easy even on Hard ).But don't worry there are only 10 in all the game.

They have 2 main abilities: first one pulls a random party member to the revenant and the other is Cleave(splash damage).(so make sure you keep your ranged dps / healers away)

You are going to meet Revenants for 3 different purposes:

1. For the codex entry about the black vials in the following locations:
 * Mage Tower - at the fallen statue


 * Lower Forest Ruins
 * Werewolf Lair
 * Orzammar palace
 * Carilden's cross
 * Denerim (Random street encounter)

In order to fight these you need to interact with the Glass Phylacteries.

2.The Juggernaut Set

To obtain the Helm, Boots and Gloves you need to fight 1 Revenant and his lovely adds for each of them in the Brecillian Forest. The Chest piece in the Brecillian Ruins.

3.There's a lonely Revenant defending Redcliff Castle's courtyard when you first go there.

Strategies

The Revenant has some very powerfull abillities. He has a lot of armor and health, cannot be stunned, knocked dwonw etc., can deal damag to several character enaged in melee with him and worst of all can drag a character near to him. He is a beast in close combat, too. In order to kill him make sure you have a tank generating a lot of hostility. He need so be healed - drinking to much healthy drinks stops him from generating hostility.

You wont kill him in close combat, because damage dealers will just get killed. The best way are mages that or range damage dealers. Optimally, Lightning and Spirit-based attacks work fairly well. Other than Fire, which needs testing, the Revenant resists all other spells. You can control him somewhat by putting Force Field or Crushing Prison on him to put him out of commission for a bit while cleaning up adds if in the Brecillan Forest or the Redcliffe Castle courtyard. This helps a lot at lower levels.

Note: I killed some with Ulric (Tank/Dwarf/Nobel/Shield&Sword), Alister (Tank/Shield&Sword), Wynne (Healer/not really Damagedealer), [Sten (Melee Damagedealer) another time with Leliana (Range Damagedealer)]

It was hard work with Sten, because the tanks needed all the healing. With Leliana is was pretty easy because the tanks generated enough hostility and with a little micro management it was possible to switch between Ulric and Alister as tank so the other could take a drink or two. What really helped was rapid shot and a good crossbow.

I play a mage character and have had good success with a group consisting of Alistair tanking and Sten going to town with a big two hander behind him. Use Leliana as an archer from range, and cast every direct damage/debuff I can on him. Misdirection Hex is a HUGE boon against Revenants, as well as Curse of Mortality as it negates their regeneration. If you have it Death Hex seals the deal, turning a hulking monster of death, carnage, and mayhem, into a muling little baby in need of a serious diaper change. Playing this way, all I had to do was set Alistairs tactics to chuck a minor health poltice whenever he was 75% or under and have Sten do the same if he got under 50%. I very rarely had to cast a heal on either of the melee and between Leliana, my Mage, and Sten they have always been short fights.

Links
Codex: Revenant

Codex: The Black Vials