What wrong with he Burden of the Father (Savage)?

[Bourne_Endeavor]

Is it VERY hard?

In its heyday, A4S was the hardest fight in the game by a country mile. Nowadays it's doable without too much worry, provided you have Echo and at least 220 gear. It's apparently a very boring fight though, so few people are going to do it in DF. No offense, but the fact you're asking this says you aren't quite ready for Savage content. These fights are extremely mechanic heavy and demand a lot from the raid group, even if you're overgeared.