Gargath

He is quite do able with a group of 4 50's. We typically use Shadow(Tank(Me)) Sage(Healer) Guardian(DPS) Commando(DPS). Everyone is in a minimum of 124 Gear(more so a split of 126/136 Gear, no more than that). The more players you add though, it would be advised to add additional healer(s) to keep up with the healing load. He Circles the Ice Spikes in the region of Cladburn Tundra, Gargath's Watch(-2213, 477)

The only thing to really worry about is the AoE +slow he does on a non-melee ranged player. Aslong as your group stays aware and moving it should not be too hard. His HP is roughly 1.4million.

Drops Magenta Recipe(s), along with many different kinds of Prototype level 45+ Artifact items.

Killed him today 12/4 in the beta. Relatively easy fight. He has roughly 1400k Health.You only need 1 tank, atleast 3 healers, and the rest dps. He dropped Artifact (purple) gear level 45+.

He patrols around the area so have your raid mounted as you pull. Once the tank has aggro the raid should spread out around him, melee included. He was 2 abilities. The first is a AoE knockback. The damage wasn't that bad roughly 2-3k. The second ability is a ranged slow on a randomly targeted player not in melee range, followed by a AoE centered around that target. Afflicted players can safely run out of it through the slow only taking a tick of the aoe if they are fast enough. It is recommended that they are cleansed of the slow or moved with abilities such as Rescue. It is unlikely that he has an enrage timer considering my group was not full.

Happy Hunting.

drops:

Tech Savant's Leggins
Tri-plated Heavy Gauntlets
Triton Headgear