I have just begun to use TellMeWhen, and have been trying to figure out how I can track the duration of my Doomguard/Infernal summon and my extra demon from the grimoire talent.

I was able to make it work as a condition effect with my Shadow Priest, but I think that is only because when the Shadowfiend is summoned, it acts as a pet with a pet action bar etc. When either of my two major demons are summoned, or my second Felguard is summoned, it is a separate entity.

I have been fooling around with different ways of trying to track this but am not well-versed in the addon and its uses. Any help would be greatly appreciated. Thanks!