Bastion Nymic Guide for ESO

Before you can do anything in Bastion Nymic, you'll first need to gain access. This world event is unique in two ways - it is instanced, and it is only accessible via a daily quest. 

The first step to accessing Bastion Nymic is to pick up the relevant daily quest from Ordinator Tandasea in the city of Necrom, on Telvanni Peninsula.

The daily quest will first task you wish collecting 5 Daedric Ichor, which must be obtained by defeating Herald's Seekers (effectively roaming World Bosses). When you have the quest, the areas where you can find Herald's Seekers will be marked on your map.

If you're alone then you will need to defeat five of them, but if you're grouped with a friend then their Ichor drops will also count towards your tally, so if your group has three or more members then you'll only need to defeat two of them. 

After collecting the required Daedric Ichor, the quest will point you towards the nearest portal which you can use to enter Bastion Nymic. Once there you can interact with the portal to spend the Ichor in order to gain access. 

Once inside Bastion Nymic, you will begin near the centre of the map. with the quest instructing you to go to one of the three regions around the edge of the map. Each of the three regions has its own theme, containing different enemy types, puzzles and bosses in accordance. 

The regions are:

You'll need to navigate your way to the indicated side-boss and defeat it, and along the way you will encounter groups of enemies and optional puzzles. 

After reaching and defeating the boss, the quest will point you back towards the middle of Bastion Nymic, where a final boss will have spawned. A portal will open to take you back to the middle. 

At this point you can choose to either immediately challenge the final boss, or explore the other two zones and fight the bosses there, solving more puzzles along the way if you want. This is optional, but beware that once you have defeated the final boss, everything else in Bastion Nymic that you haven't defeated yet will despawn.

So if you want to get as much loot as possible then you should save the middle boss until last. If you choose to do everything then the length of Bastion Nymic will be around the same as an average 4 player dungeon.

There are three potential bosses that can appear in the centre of Bastion Nymic - the Nymic Refuter, the Nymic Defier or the Nymic Purifier. Defeating all three of these bosses is required for Bane of Heralds achievement, so if that's your goal then you'll need to do at least three runs.