Immolation detection

Is there a way for a trigger to detect if immolation has been turned off?

Either that, or is there an ability that could be used as a "placebo" so it could be detected in such a way to toggle a trigger?

Not too sure about this one, because I haven't used triggers for too many abilities that you can Activate/Deactivate.

But try something like this:

Event: A unit stops casting an ability
Condition: Ability being cast equal to Immolation
Action: Set ImmolationOff equal to True

That will set a boolean value which you can later use to detect whether or not immolation was deactivated. You will need to add a few things in, however. Also I'm not sure if the event will work properly with deactivating Immolation, because I've had this same problem before as well.

You may want to try the orderstrings for Immolation, they would be much more efficient.

The best way currently is to check after it loses the immolation (caster) buff.