Gran maestro T. Infernal

Level	135
Health	4.171.827
Experience	0
Damage	346 - 414
Defence	456
Behaviour	Aggressive: attacks on sight
Race	Devil
Resistances	Sword +60% · Two-handed +60% · Dagger +60% · Bell +60% · Fan +60% · Bow +60% · Lightning -30% · Poison +100%

Where it spawns

It is not in any map spawn table: it comes from a quest, an event or is summoned by another monster.