In the grand alliance errata. "Pages 46-83 – Seraphon These warscrolls and warscroll battalions are no longer used. They have been replaced with the warscrolls in Battletome: Seraphon." So... we have points costs for 2 battalions in the GHB, but they're no longer valid to use. Instead of fixing the wording of Bloodclaw they just removed both battalions. RIP Bloodclaw and Heavenswatch.