Sambrogs stats and Morale/Power depends on the level and the tier of the instance.
Morale / Power
Level
Tier I
Tier II
Tier III
Type
57
63,913 / 12,503
76
146,975 / 18,308
Tactics
Throughout the battle, Sambrog will summon Fell-spirits to heal him, one at a time. Their effects will stack up if you don't mez or kill them promptly, but a group with sufficient DPS can usually ignore the adds and focus him down.
Periodically, Sambrog will drop purple clouds that cause a fair amount of DoT, so any fellowship members in close proximity should back away when he hunches over.
Drops
Lower Levels
Level 75
Level 100
Quotes
"You have made it very far, and I am impressed."
"But unfortunately for you, this is the end of your journey. I am the lord of this Barrow, and am not intent on being removed. It is time for you to rest.... for eternity!"