Yes, a Bane of Havoc guide.
Anyways, for Twilight Ascendant Council, there has been rumors and discussions on other forums
about just applying BoH to any of the first 2 bosses in P2. This is viable because your BoH
buff does not go away when Ingacious or Feludius teleports away.
If there is more testing to prove this, placing BoH on one of these 2 will definitely be a DPS increase.