Performing the Damage Generator Action on a Generator applies Overcharge:

The next Survivor interacting with that Generator is faced with a difficult Skill Check.
Failing the Skill Check results in an immediate Progression loss of 3/4/5 percent.
Succeeding the Skill Check grants no bonus Progression, but prevents the Generator from exploding.
After Overcharge is applied to a Generator, the following effect applies:

Increases the Regression speed from 75 percent to 200 percent over the next 30 seconds.

As soon as an exit gate is opened, Blood Warden is activated.  The auras of any Survivors located within Exit areas are revealed to you.  Once per match, hooking a Survivor while Blood Warden is active calls upon The Entity to block both Exits for all Survivors for 60 seconds.

Once the Exit Gates are powered, Terminus activates:

All Survivors, who are either injured, dying, or hooked, suffer from the Broken Status Effect until the Exit Gates are opened.
This effect lingers for an additional 20/25/30 seconds after the Exit Gates are open.

At the start of the Trial, 4 random Hooks are changed into Scourge Hooks:

The Auras of Scourge Hooks are revealed to you in white.
Each time a Survivor is unhooked from a Scourge Hook, the following effects apply:

The Survivor suffers from the Hemorrhage and Mangled Status Effects until healed.
Upon being healed, the Survivor suffers from a 10/13/16 percent Action Speed penalty to Healing and Repairing until they are injured again.