Bosses Witnessed by the Maven can drop Maven Chisels
Tier 1-15 Maps dropped in this Quadrant are a tier higher
Tier 1-15 Maps dropped in this Quadrant are converted to Gold
Tier 16 Maps dropped in Areas have 0.4% chance to become a Nightmare Map
for each Socketed Voidstone
(Each Nightmare Map dropped in Areas lowers the
chance for subsequent Nightmare Maps to drop)

Maps have 25% chance to have either Shaper or Elder Influence when opened
Tier 1-15 Maps dropped in this Quadrant are a tier higher
Tier 1-15 Maps dropped in this Quadrant are converted to Gold
Tier 16 Maps dropped in Areas have 0.4% chance to become a Nightmare Map
for each Socketed Voidstone
(Each Nightmare Map dropped in Areas lowers the
chance for subsequent Nightmare Maps to drop)

Eldritch Altars have 25% chance to have an additional downside, as well as an
upside from the other Eldritch Influence
Tier 1-15 Maps dropped in this Quadrant are a tier higher
Tier 1-15 Maps dropped in this Quadrant are converted to Gold
Tier 16 Maps dropped in Areas have 0.4% chance to become a Nightmare Map
for each Socketed Voidstone
(Each Nightmare Map dropped in Areas lowers the
chance for subsequent Nightmare Maps to drop)

Bosses within the Atlas can drop Astrolabes and Exceptional Support Gems
Equipment Items have a chance to drop with Memory Strands
Tier 1-15 Maps dropped in this Quadrant are a tier higher
Tier 1-15 Maps dropped in this Quadrant are converted to Gold
Tier 16 Maps dropped in Areas have 0.4% chance to become a Nightmare Map
for each Socketed Voidstone
(Each Nightmare Map dropped in Areas lowers the
chance for subsequent Nightmare Maps to drop)