Pug 1.18 notes pre launch discussion

[Meleena]

When I use invigorate I get a 30 sec buff, what do you mean when you say that it works as long as you fight?
If I use it against the ogre (for eg) the buff will last for the whole battle?

[Lienn]

When I use invigorate I get a 30 sec buff, what do you mean when you say that it works as long as you fight?
If I use it against the ogre (for eg) the buff will last for the whole battle?

He means that if you aren't engaged long enough for TP to start dropping the invigorate effect will also stop working until you engage again, even it its still active.