The Phase Spider Matriarch is one of the earlier tough enemies that you encounter in Act I if you find yourself in the Whispering Depths.
This large Phase Spider can deal a lot of damage and is accompanied by other Phase Spiders but that’s not all, it can force its eggs to hatch Phase Spiderlings.
Due to the many ways your characters can suffer from this battle, making sure to use the right strategy is the key to defeating this large arachnid.
Phase Spider Matriarch Location
The Phase Spider Matriarch is found within the Whispering Depths near the large hole that leads to the Underdark, where she patrols around 3 rock pillars.
If you happen to get caught in the Web Bridges, your presence will be known and the Phase Spider Matriarch will rush to attack you.
How To Defeat The Phase Spider Matriarch?
The very first thing you should consider is that you should not stay on the Web Bridges as these can cause you to become immobile, which makes you a sitting duck.
You will want to make the first move, so you should attack her with a ranged attack when she is patrolling to make her come to you.
Options are either ranged attacks with a Bow or Crossbow or to use spells if you are a Spellcaster or have Gale in your party.
One of the fastest ways to defeat the Phase Spider Matriarch is to wait for her to approach your party and if you are lucky, she will stop on one of the Web Bridges.
You can easily destroy these Web Bridges with ranged attacks or better with Fire or Acid Spells as they deal increased damage to the webs.
If the Phase Spider Matriarch is on the Web Bridge that you destroy, she will fall below and suffer from fall damage. (This can take out more than half of her health)
One thing to keep in mind is that there will be other Phase Spiders and that the Phase Spider Matriarch will attempt to hatch her eggs.
If other Phase Spiders appear, you should focus your attacks on them to take them out of the picture and if Phase Spiderlings are hatched, you should deal with them too.
Phase Spiderlings do not have that much health, and you can easily take them out with a spell that does damage in an area or using melee attacks that cover a radius such as Cleave.
Phase Spider Matriarch Drops
After you have killed the Phase Spider Matriarch, you can loot the Poisoner’s Robe (Uncommon Clothing) from her, which benefits those who utilize Poison Damage.
Poisoner’s Robe causes your spells that deal Poison Damage to deal an additional 1~4 Poison Damage to your targets.
Additionally, you will also be able to get a Silk Gland from her inventory, which is one of the ingredients used to make Web Grenades.
Verdict
The fight with the Phase Spider Matriarch can be done as early as you reach the Blighted Village and head into the Whispering Depths.
Before fighting this large spider, it would be a good idea to do a short or long rest to make sure your party has enough health and spell slots to damage her.
Making use of the Web Bridges to cause the Phase Spider Matriarch to fall is the best advantage you have and will ensure that you kill her before she destroys your party.