NPCs composing that spawngroup :

A_Ruby_Drake (50%)

A_Shimmering_Drake (50%)

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

skyshrine_4, range=68 (420,745,331)

An_Elder_Emerald_Drake (50%)
An_Elder_Shimmering_Drake (50%)

skyshrine_16, range=42 (470,694,205)

skyshrine_18, range=26 (510,720,212)

An_Old_Racnar (50%)
A_Shrine_Protector (50%)

skyshrine_303, range=72 (459,800,45)

An_Emerald_Drake (50%)
An_Emerald_Drake (50%)

skyshrine_304, range=88 (429,800,45)

An_Onyx_Drake (50%)
A_Ruby_Drake (50%)

skyshrine_305, range=86 (401,733,45)

An_Onyx_Drake (50%)
A_Shimmering_Drake (50%)

Laoch_Nablibx_189855, range=49 (518,772,215)

Laoch_Nablibx (100%)

a_shambling_cube_189869, range=89 (550,670,207)

a_shambling_cube (100%)

skyshrine_112956, range=43 (526,713,215)

Laoch_Maljix (100%)