NPCs composing that spawngroup :

An_Onyx_Drake (50%)

An_Onyx_Drake (50%)

NPCs spawning around that spawngroup :
(Max range : 200)

skyshrine_13, range=174 (896,1214,242)

An_Elite_Emerald_Drake (50%)
An_Elite_Shimmering_Drake (50%)

skyshrine_14, range=175 (970,1157,222)

An_Elite_Emerald_Drake (50%)
An_Elite_Onyx_Drake (50%)

skyshrine_15, range=16 (828,1037,222)

An_Old_Racnar (100%)
An_Old_Racnar (100%)

skyshrine_18, range=156 (970,985,222)

skyshrine_33, range=162 (683,1124,67)

An_Emerald_Drake (50%)
A_Ruby_Drake (50%)

skyshrine_46, range=156 (788,1204,67)

An_Emerald_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_48, range=120 (880,944,47)

An_Icy_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_49, range=49 (782,1067,67)

An_Icy_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_52, range=166 (870,1214,67)

A_Ruby_Drake (50%)
A_Shimmering_Drake (50%)

skyshrine_53, range=172 (970,1152,47)

An_Icy_Drake (50%)
A_Ruby_Drake (50%)

skyshrine_54, range=126 (955,1060,47)

An_Emerald_Drake (50%)
A_Ruby_Drake (50%)

skyshrine_139, range=181 (707,918,67)

An_Icy_Drake (50%)
A_Shimmering_Drake (50%)

skyshrine_289, range=164 (805,890,351)

an_elder_shrine_golem (100%)
an_elder_shrine_golem (100%)

skyshrine_113087, range=151 (759,1187,71)

a_shambling_cube (100%)

skyshrine_113092, range=145 (759,926,223)

Eldriaks_Fe`Dhar (100%)