Natanan

Level	123
Health	454.864
Experience	0
Damage	513 - 653
Defence	253
Behaviour	Aggressive: attacks on sight
Race	Devil
Resistances	Sword +20% · Two-handed +20% · Dagger +20% · Bell +20% · Fan +20% · Bow +20%

Where it spawns

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