NPCs composing that spawngroup :

a_whirl_of_cinders (100%)

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

solrotower2120022, range=157 (-1693,2006,282)

a_molten_magmin (50%)
a_scorched_magmin (50%)

solrotower2120023, range=147 (-1601,2000,286)

a_whirl_of_embers (50%)
a_whirl_of_magma (50%)

solrotower2120035, range=130 (-1716,1752,289)

an_inferno_mephit (100%)

solrotower2120037, range=79 (-1718,1843,289)

a_fire_mephit (100%)

solrotower2120041, range=111 (-1720,1936,294)

an_inferno_mephit (50%)
a_lava_mephit (50%)

solrotower2120045, range=159 (-1535,1978,289)

an_inferno_mephit (50%)
a_flame_mephit (50%)

solrotower2120046, range=87 (-1672,1939,284)

an_ember_magmin (90%)
a_fervid_magmin (10%)

solrotower2120047, range=83 (-1633,1941,289)

an_inferno_mephit (100%)

solrotower2120048, range=170 (-1631,2028,288)

a_molten_magmin (50%)
a_scorched_magmin (50%)

solrotower2120050, range=172 (-1775,1750,289)

an_inferno_mephit (100%)

solrotower2120051, range=161 (-1801,1847,291)

solrotower2120052, range=157 (-1792,1818,291)

an_inferno_mephit (100%)

solrotower2120163, range=195 (-1561,1679,289)

an_inferno_mephit (100%)

solrotower2120360, range=127 (-1669,1982,280)

a_flame_frog (100%)

solrotower2120367, range=194 (-1777,1719,288)

a_flame_mephit (100%)

solrotower2120391, range=196 (-1837,1860,288)

a_flame_mephit (100%)