Nightmare

Challenges

Boss	Layer	Location	Boss level	Suggested item level	First clear (level 1)
Gatekeeper Pinopi	Layer I	Root Cellar	45	1,000 ~ 1,600	500 Phantasmal Fragment
Furious Feruk	Layer I	Dranactus Underkeep	45	1,000 ~ 1,600	500 Phantasmal Fragment
Fafnir's Poison Blood	Layer I	Root of the Sacred Tree	45	1,000 ~ 1,600	500 Phantasmal Fragment
Wraith Giselle	Layer I	Crypt	45	1,000 ~ 1,600	500 Phantasmal Fragment

Boss	Layer	Location	Boss level	Suggested item level	First clear (level 1)
Fortress Guardian Notun	Layer I	Destruction Archon Underground Fortress	55	1,700 ~ 2,300	840 Phantasmal Fragment
Mutated Gerod	Layer I	Blades Hideout	55	1,700 ~ 2,300	840 Phantasmal Fragment

All 10 levels of each boss
7 bosses: boss level, suggested item level and first clear rewards per level