Frozen Stygia is ruled by Levistus, an archdevil known for offering bargains to those who face an inescapable doom.

Ability Score Increase

Your Charisma score increases by 2, and your Constitution score increases by 1.

Legacy of Stygia

You know the ray of frost cantrip. When you reach 3rd level, you can cast the armor of Agathys spell as a 2nd-level spell once with this trait and regain the ability to do so when you finish a long rest. When you reach 5th level, you can cast the darkness spell once with this trait and regain the ability to do so when you finish a long rest. Charisma is your spellcasting ability for these spells.

The Emotions that empower a rage can include anger, pain, or sorrow. Those on the Path of the Dark Side harness these negative emotions into an umbral power not unlike that of the Shadowfell. These dark knights endure as much harm as they can muster then unleash it back onto their enemies.

Vengeance, self-loathing, or the desire to protect others are among the many reasons a barbarian would seek this path. The Dark Side welcomes both the saviors and the destroyers. 

Dark Knight

3rd-level Path of the Dark Knight feature

At 3rd level, you can withstand the burden of your ebon armor. You gain proficiency with heavy armor and you gain the benefits of raging even while wearing it.

Your armor helps suppress your feelings until they're ready to be unleashed. While you are wearing heavy armor and you're not raging, you can add your Rage Damage value to ability checks and saving throws against attempts at discerning your intent, emotions, or thoughts. 

Soul Eater

3rd-level Path of the Dark Knight feature

Also at 3rd level, you can turn your suffering into strength. When you enter your rage and at the start of each turn you are raging, you can choose to take an irreducible 1d6 damage. Until the end of that turn, your weapon attacks deal extra necrotic damage equal to 1d6+ your Constitution modifier. 

If you score a critical hit while Soul Edge is active, you gain temporary hit points equal to the necrotic damage dealt.

If you are below half your maximum hit points, you can choose to maximize both the damage you take and the necrotic damage you deal with this feature.

Shadow Wall

6th-level Path of the Dark Knight feature

At 6th level, you gain resistance to necrotic damage.

Additionally, you can draw harm away from others. When a creature within 15 feet of you takes damage while you are raging, you can use your reaction to take that damage instead.

Dark Mind

10th-level Path of the Dark Knight feature

At 10th level, your imposing presence aids you in both combat and in conversation. You can interrogate a creature alone for at least 5 minutes. At the end of the interrogation, you can make a contested Charisma (Intimidation) check against its Charisma (Deception) check. If you are successful, you can ask it up to three questions, which it must answer truthfully. 

The creature has disadvantage on this check if you have damaged it in the last 24 hours and it either is below half its maximum hit points or if it was knocked unconscious within that time frame.

Once you use this feature, you can't use it again until you finish a short or long rest. 

Quietus

14th-level Path of the Dark Knight feature

At 14th level, you can sacrifice yourself to end your foes. When you hit a creature with a melee weapon while raging, you can expend up to half your hit die. Roll the expended hit dice and both you and the target take additional necrotic damage equal to the number rolled, ignoring resistance. 

Once you use this feature, you can't use it again until you finish a long rest. 

Your son, the last thing you have is gone. All that remains are pieces of clay fragments from the destruction. However, that's all that remains. You know that with those fragments should have been the core.

A large scale battle between magic users. There were those who from The Sylvan Glade who infiltrated Jortha in the hopes of taking down the problem at the source. The battle lasted for a week against the Marktinla Army. However, Marktinla was proven victorious at standing their ground.