If there is at least one Dull Totem remaining in the Trial Grounds, Hex: Plaything activates on a random Totem each time a Survivor is hooked for the first time:

The hooked Survivor suffers from the Cursed and Oblivious Status Effects until Hex: Plaything is cleansed.
For the first 90 seconds, only the Cursed Survivor is able to cleanse the Hex Totem.
The Aura of Hex: Playthings Hex Totem is revealed to the Cursed Survivor within 24/20/16 meters.
The Hex effects persist until its Hex Totem is cleansed.

For each Totem remaining in the environment, Hex: Thrill of the Hunt gains 1 Token.

Survivors suffer from a stack-able 8/9/10 percent Action Speed penalty per Token to Cleansing and Blessing, up to a maximum of 40/45/50 percent.
Grants a stack-able 10 percent bonus Bloodpoints for actions in the Hunter Category per Token, up to a maximum of 50 percent.
The Hex effects persist until its Hex Totem is cleansed.

After a generator is repaired, The Entity blocked the generator with the most progress for 30 seconds.  You see its white aura during this time.

Survivors cleansing or blessing any Totem suffer from the Oblivious Status Effect for 35/40/45 seconds.
After cleansing or blessing a Hex Totem, the Auras of all Survivors are revealed to you for 15 seconds.
The Hex effects persist until its Hex Totem is cleansed.

Each time a Survivor is hooked for the first time, you gain a token.  Upon reaching 4 tokens Grim Embrace activates.

The Entity blocks all generators for 40 seconds.  The Obsessions aura is revealed to you for 5 seconds.

Your basic attacks make Survivors drop their item on impact.  While on the ground, it takes up to 90 seconds for the item to lose all of its charges if it is not picked up.  Reveal items on the ground within 32 meters with a white aura.  The aura will slowly fade to red until the item is empty of charges.