Mythic dungeon demo lock question

I been watching rotation videos on yourube for the demo lock, and im wondering if i gotta use grimoire of the felguard in rotation cause they mever say anything about it

Yeah, you pretty much press that button every chance you get.
This doesn’t change between ST and AOE, so maybe the videos you watch are focused more on the AOE differences. Or maybe they’re thinking of it more as a CD and discuss it later.

But yes. Grim: Fel Guard = always.

Thank you for clarification

Use it frequently.

Inside of dungeons, it’s perfectly fine to treat as a 2 minute stun/interrupt outside of bosses.