Defias Blackguard

Defias Blackguards were level 18-20 elite humans of the Defias Brotherhood that could be found in the original Deadmines. They were talented and high-ranked assassins of the Defias Brotherhood, who had been chosen to safeguard the head of the Brotherhood, Edwin VanCleef. They deceptively hid in stealth, staying unseen to the intruders, waiting for a perfect timing to assassinate those who would threaten the Brotherhood.

Notable loot
They had a chance to drop Stonemason Trousers.

Encounter
Before attacking the Edwin VanCleef, two Blackguards stealth in the room where VanCleed stands. When VanCleef is pulled, it will also attract the Blackguards to attack the group. When VanCleef has ~60% of his health left, he will call two other Blackguards to aid him.
 * Blackguards have rough 1400 health.