Spawn locations (click for map image) for your "heartoffear.txt" map file (note: see this quest entry for all Heart of Fear named map points):
P 84.8597, -2138.7588, 1.0174, 127, 0, 0, 1, Ulzschanoth
P -378.4291, -2103.2065, -36.1956, 127, 0, 0, 1, Ulzschanoth
P 514.0854, -1956.1115, -23.2449, 127, 0, 0, 1, Ulzschanoth
Known spawn locations, in-game /locs (PHs are "an enraged _____"):
2140, -85, 1
2100, 380, -36
1955, -515, -23
This is a named amygdalan.
Casts Tentacle Slap (random single target spinstun + nuke for 70,000 dmg; will not hit most hated target) 10 seconds after engage, and then every 30 seconds.
Casts Depths of Terror (random single target fear; 300' range) 15 seconds after engage, and then every 20 seconds.
Lol Can't say that name doesn't look a little Russian, but either way, he's fairly straight forward as most of the outer zone names seem to be. So far hes the worst spawn rate for me. Only got him to pop once in 6 or 7 hours, dropped the Cloak of Entracing Terror. I'm glad, I really didn't want to farm him for days.
Gloves were not present. I estimate template drops to be about 1 in every 12 named kills as for my experience with other named in the zone. The drop rate is really very poor on patterns.
Map indicates correct spot. Enraged mobs are PH's.