NPCs composing that spawngroup :

A_Ruby_Drake (50%)

A_Shimmering_Drake (50%)

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

skyshrine_12, range=64 (896,1273,242)

An_Elite_Onyx_Drake (100%)
An_Elite_Onyx_Drake (100%)

skyshrine_13, range=26 (896,1214,242)

An_Elite_Emerald_Drake (50%)
An_Elite_Shimmering_Drake (50%)

skyshrine_14, range=115 (970,1157,222)

An_Elite_Emerald_Drake (50%)
An_Elite_Onyx_Drake (50%)

skyshrine_15, range=181 (828,1037,222)

An_Old_Racnar (100%)

skyshrine_18, range=115 (890,1100,222)

An_Old_Racnar (50%)
A_Shrine_Protector (50%)

skyshrine_44, range=163 (1021,1152,47)

A_Ruby_Drake (50%)
A_Ruby_Drake (50%)

skyshrine_46, range=82 (788,1204,67)

An_Emerald_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_49, range=171 (782,1067,67)

An_Icy_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_50, range=147 (736,1276,67)

skyshrine_51, range=60 (870,1274,67)

An_Emerald_Drake (50%)
An_Emerald_Drake (50%)

skyshrine_53, range=117 (970,1152,47)

An_Icy_Drake (50%)
A_Ruby_Drake (50%)

skyshrine_54, range=175 (955,1060,47)

An_Emerald_Drake (50%)
A_Ruby_Drake (50%)

skyshrine_57, range=166 (829,1053,47)

An_Onyx_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_113087, range=114 (759,1187,71)

a_shambling_cube (100%)