Luxuria

Luxuria is the first layer of the Seven Hells, the layer of lust. The most likely beachhead for any attack by angel-kind, it was the primary battleground of the Celestial War: legions of devils marched across its plains in continual readiness to repel the angelic troops of invaders. This layer is mainly composed of wide valleys with elegant curves stretching to the horizon dotted by rare forest, the sky taking on a light blue tone almost making you forget that you are in the seven Hells. The atmosphere is however humid and a constant warmth emanates from this layer.

Geography

The top-most layer of the Seven Hells is the most frequently visited by outsiders and serves as a titanic battlefield in the never-ending Celestial War. Countless ruined castles and fortresses sit amidst the broken landscape of crimson stone beneath a light blue sky of desire and fiery passions. The Rivers, tinted by the blood of the countless battles, weave in and around the small valleys created by the shifting landscape.

The Basalt citadel

The Basalt Citadel is the immense floating citadel capital of this layer. When it is not under the attack of angelic troops, the city's bustling markets and pleasure palaces draw visitors from across the multiverse in search of obsucre magical lore and perverse delights. The devil of the Basalt Citadel present a veneer of civility and courtly comity. However, the layer holds as much danger as any other part of the seven hells, and planar visitors can vanish without a trace in its mazelike cities and in forest whose trees have serpents for branches.

Features

Hazard

Hurricane of Emotions. A non-evil creature in the wildest region of the layer may unwillingly be the cause of hurricane-like winds symbolic of their own lack of self-control of their lustful passions in. A non-evil visitor in the certain region of Luxuria must make a DC 10 Wisdom saving throw. On a failure, a small hurricane appear until the end of the creature next turn.
If outdoors, creatures in the hurricane area must make an athletics check (DC 16) to prevent themselves from being swept/blown away. If the creatures are securely holding onto an object, they may make the check with advantage. Creatures who fail the check fly away 30 feet.
In addition to those sudden hurricane, the valley of Luxuria are always swept by strong wind. A strong wind imposes disadvantage on ranged weapon attack rolls and Wisdom (Perception) checks that rely on hearing. A strong wind also extinguishes open flames, disperses fog, and makes flying by nonmagical means nearly impossible. A flying creature in a strong wind must land at the end of its turn or fall.

Exhaustion

Luxuria’s combination of oppressive heat and supernatural malevolence weighs on the bodies and souls of those who are not evil. A non-evil creature treats normal travel through Luxuria as a forced march and must make a Constitution saving throw at the end of each hour of travel. The DC is 10 + 1 for each hour of travel. On a failed saving throw, a creature suffers one level of exhaustion.

Ruler

Zariel rule over Luxuria, a fallen angel who became the first Succubus. Zariel rules from a floating basalt citadel and through arcane might and a deep connection with the layer she is able to rain orb of raw magic down upon the landscape at irregular intervals.
Unlike the other Archdevils, Zariel is not attended to by a host of devil dukes and duchesses. Instead, Luxuria is home to the Outcast Dukes – powerful devils that have been banished from their realms in the lower Seven Hells and now must fight for scraps on the edge of the Celestial War. Luxuria is wracked by constant war and strife, and while Zariel rules, there is too much going on across the layer for her to keep her attention focused on all of it.