Upon visiting the Broken Shore in Legion Remix a few weeks ago, Sentinax farming proved very lucrative, allowing players to farm large amounts of Bronze and Infinite Power with little to no downtime. However, the associated achievement appeared to be broken - for all of the uncommon and rare beacons farmed from untold thousands of slaughtered demons, the requisite epic ones simply did not drop.
This was been corrected with the launch of Patch 11.2.7, once again dropping epic beacon to summon and defeat the Rare Elite bosses. It's still an incredibly tedious and time consuming achievement due to the randomness of portal drops, and with no intrinsic rewards, most players will be better off simply not prioritizing this major grind. For the completionists out there though, doing it in Legion Remix can be significantly faster than normal servers, since you'll be more likely to find a group and can farm extra Infinite Power or Bronze at the same time. Doing it solo can take months of farming, so you really won't want to go alone!
Early farmers turned the Broken Shore into a warzone, but its a lot less crowded now, so you'll definitely want a group!
For those ambitious enough to complete the achievement, we highly recommend forming a group, and following this helpful outline put together by Xirev. More tips, like extending the duration of a greater beacon with regular beacons of the same color, can also be found in the comments section of the Naxt Victim achievement page.
How to summon the specific bosses is very simple. Each different Sentinax Beacon summons mobs that drop additional Sentinax Beacons for that specific Beacon and ultimately the Portal Stone (boss).
You get the Uncommon (green quality) Sentinax Beacons from the standard mobs in the area, you then need to farm the mobs that come out of the Sentinax Portal until they drop a Rare (blue quality) Sentinax Beacon and use it to empower the portal, it is only after this that the Portal Stone can drop. Keep using all the Rare Sentinax Beacons you get to extend the duration of the Sentinax Beacon.
If you already happen to have a Rare Sentinax Beacon you can use that immediately, the portal will spawn regardless if there's a portal spawned by an Uncommon Sentinax Beacon or not.
Illisthyndria requires Sentinax Beacon of Torment -> Sentinax Beacon of Greater Torment -> Portal-Stone: Illisthyndria
The mobs that spawn from these portals are Sentinax Observer, Sentinax Warden, Legion Painmaiden.
Fel Obliterator requires Sentinax Beacon of Engineering -> Sentinax Beacon of Greater Engineering -> Portal-Stone: Fel Obliterator
The mobs that spawn from these portals are Cursed Pillager, Putrid Alchemist, Mo'arg Brute, Mo'arg Bonecrusher, Gan'arg Engineer.
An'thyna requires Sentinax Beacon of Warbeasts -> Sentinax Beacon of Greater Warbeasts -> Portal-Stone: An'thyna
The mobs that spawn from these portals are Spellstalker, Legion Venomretcher, Legion Webspewer, Rotwing Ripper, Dark Felshrieker.
Force-Commander Xillious requires Sentinax Beacon of Carnage -> Sentinax Beacon of Greater Carnage -> Portal-Stone: Force-Commander Xillious
The mobs that spawn from these portals are Doomguard Firecaller, Wrathguard, Felguard Invader, Doombringer.
Skulguloth requires Sentinax Beacon of the Firestorm -> Sentinax Beacon of the Greater Firestorm -> Portal-Stone: Skulguloth
The mobs that spawn from these portals are Virulent Imp, Blazing Imp, Darkfire Fiend, Vile Mother.
Than'otalion requires Sentinax Beacon of Domination -> Sentinax Beacon of Greater Domination -> Portal-Stone: Than'otalion
The mobs that spawn from these portals are Felsworn Chaos Mage, Battlesworn Nether-Mage, Hungering Stalker, Infectious Stalker, Darkfiend Devourer, Dark Ritualist, Debilitating Eye, Draining Eye.
