In Path of Exile, the Ebony Barracks is an area in Act 3. This area has a waypoint and is connected to The Sewers, The Lunaris Temple Level 1, and The Imperial Gardens.
This area is divided into levels connected by stairs, with the lowest floor at the bottom of the area leading to the highest floor at the top. On the right of the map there is an overgrown wall that moves up to the Lunaris Temple.
In the middle of the overgrown wall you will find the entrance to The Imperial Gardens, the waypoint is located near that entrance. By climbing the large stairs you will eventually encounter General Gravicius’ base which has a large tent and red carpet near the stairs.
Behind the base is the Lunaris Temple, as you get closer to temple the ground changes to black tile surrounded by columns and dead ribbons. And you will encounter the following monsters:
1. General Gravicius
He is a boss in Act 3, located in The Ebony Barracks. Defeating him is the objective of the quest Sever the Right Hand.
For this boss, fire resistance is crucial. When at range he will spam his Firestorm skill and his Molten Shell. His Molten shell does a lot of fire damage which could even 1 shot weaker characters. In addition to the fire damage he deals, 2 of his guards cast a curse (Flammability) that reduces your fire resistance.
General Gravicius has a high energy shield, so it may take some time to defeat him. Do not be afraid to use a portal scroll to refill your potions if they run out.
2. Blackguard Arcmage
They are a type of Blackguard spellcaster that can be found in the Ebony Barracks. They specialize in lightning spells. They are rather dangerous as they cast Lightning Thorns on allies making them reflect lightning damage to you when you hit them. It is recommended to take them out first before turning to the other Blackguard Soldiers and Blackguard Elites.
Conversely, if you have a way to use enemies against your foes (Raise Spectre, Dominating Blow, etc), these are a good bet.
3. Blackguard Elites
They are a type of melee Blackguard.
4. Blackguard Soldier
He is a type of Blackguard found in Act 3.
There’s a lot more players guide on https://www.u4gm.com/path-of-exile, so be sure to check out if you need some guides.