NPCs composing that spawngroup :

An_Old_Racnar (50%)

A_Shrine_Protector (50%)

NPCs spawning around that spawngroup :
(Max range : 100)

skyshrine_15, range=68 (683,780,222)

An_Old_Racnar (100%)

skyshrine_289, range=82 (805,790,351)

skyshrine_307, range=92 (659,788,45)

An_Emerald_Drake (50%)
An_Onyx_Drake (50%)

skyshrine_308, range=56 (707,788,45)

An_Emerald_Drake (50%)
An_Icy_Drake (50%)