NPCs composing that spawngroup :

An_Icy_Drake (50%)

An_Onyx_Drake (50%)

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

skyshrine_13, range=186 (896,1214,242)

An_Elite_Emerald_Drake (50%)
An_Elite_Shimmering_Drake (50%)

skyshrine_15, range=54 (828,1037,222)

An_Old_Racnar (100%)

skyshrine_18, range=112 (890,1100,222)

skyshrine_19, range=176 (645,955,222)

A_Shrine_Protector (50%)
A_Shrine_Protector (50%)

skyshrine_33, range=114 (683,1124,67)

An_Emerald_Drake (50%)
A_Ruby_Drake (50%)

skyshrine_46, range=137 (788,1204,67)

An_Emerald_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_48, range=157 (880,944,47)

An_Icy_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_52, range=171 (870,1214,67)

A_Ruby_Drake (50%)
A_Shimmering_Drake (50%)

skyshrine_54, range=173 (955,1060,47)

An_Emerald_Drake (50%)
A_Ruby_Drake (50%)

skyshrine_57, range=49 (829,1053,47)

An_Onyx_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_139, range=166 (707,918,67)

An_Icy_Drake (50%)
A_Shimmering_Drake (50%)

skyshrine_140, range=193 (659,918,67)

An_Emerald_Drake (50%)
An_Icy_Drake (50%)

skyshrine_289, range=178 (805,890,351)

an_elder_shrine_golem (100%)
an_elder_shrine_golem (100%)

skyshrine_113087, range=122 (759,1187,71)

a_shambling_cube (100%)

skyshrine_113092, range=142 (759,926,223)

Eldriaks_Fe`Dhar (100%)