Undercurrent Hall - New Horizons instance that is available after the server unlocks the Final Seal phase. The instance has daily quests, one of which can be repeated up to 3 times.
The instance is used to farm Primordial Blood (up to 5 a day) as well as Dragon Blood Stones (previously Hidden Dragon Den materials before the instance was disabled) or Arcane Sky Pills. The quests also give some Vitae.
The video was of my second run so there may be a few mistakes as we were still figuring out how things work. Each side can be done in about 15 minutes in a full squad that knows what they are doing so the overall instance can take about 30 minutes. The instance requires teamwork and communication. Overall it's quite fun with some new mechanics/things to do.
Notes for those playing Venomancers:
- The instance is rather pet-friendly. It might die to the Fire side boss AOE but over-all I was able to have my pet out and assist me with things.
- Fire side boss has self-buffs which must be purged. It buffs itself with attack and heals (Ironheart icon and attack icons). The system warns you ahead of time so you have plenty of time to drop to Fox Form and prepare.
- Bosses seem to be immune to the HP debuff so Sage Soul Degeneration doesn't work there.