Once you've reached the Dreaming City and explored, you'll receive a weekly bounty from Petra Venj called the “Ascendant Challenge”. To access the Ascendant plane in the dreamy city and uncover many other secrets, you will need to have a sip of the Queensfoil tincture.
What is Queensfoil Tincture
According to the Lore Tab, a tincture of Queensfoil "opens your mind to the secrets of the dream city." It sounds like you're playing around with hallucinogens, but if that leads to secrets and loot, we're okay with that.
How to get Queensfoil tincture
As with most Dream City items, you can get Tincture of Queensfoil by completing certain events and challenges, such as other Petra Venj bounties. If you are very lucky you can get some by opening Ascendant chests. But there is also a guaranteed way to buy Queensfoil Tincture if you have the spare parts and you don't mind a bit.
Finding Huginn can be a bit tricky, so follow these instructions carefully. Blast through the Divalian mists in Dream Town, then climb aboard your sparrow. Head to the blue crystal tunnel that leads to the Keres spine and follow until you reach a circular plaza before the first building with the tall tower. Instead of going this way, turn left and you will see a bridge. On the side near the bridge, you will see a small path that goes down the cliff. Follow this until you reach a portal, then walk through it.
Follow the next hallway until you reach a large blue crystal, then in the next room take a few stairs to the left. Follow the hallway, go past the statue and go through the door which is almost hidden behind. This will bring you to Harbinger's Seclude and another portal to the left back of the room. Cross over and head into the cave on the left when you get to your destination. This will bring you into a large room with a few enemies. You will find Huginn at the back left of the room.
The room on the left has an Ahamkara skull named Muninn which will sell you loads of light for 25 Baryon Bough, and the room on the right has Huginn who will sell you Tincture of Queensfoil for 50 Baryon Bough.
Huginn ignores you
Unless you already have one. In this case, it looks like he's ignoring you. If you receive this message, it means you have the maximum number of Queensfoil Tincture stacks in your inventory. If you need help getting more from Baryon Bough, we've got you covered.