Velious Gear, What to look forward to?

[Bruman]

I was there for Velious launch, although I wasn't into the raiding scene at the time. I enjoyed the ring quest series, although I don't think I did it until an expac or two later. Then again, my memory is shot and the timeline is all jumbled in my head.

How tough is it to awake the sleeper anyways? Do you have to kill all 4 (I think it's 4?) warders at once or something? Or is it that the last warder is just that tough to kill in the first place? I get that with the warders up, the keeper stays asleep, but aren't the warders killed as regular raid targets too?

I don't know crap about raiding in Velious, so just curious how it worked. I remember killing Lord Doljionoinoinoin, and a little in a wing of ToV, but that's about it.