Really? didnt they announce it like 4 months ago? This shouldve been prioritised over arena imo, as having some actual good people to use is much more important than arena... also some people have like 836492 souls and they need to spend them but they cant due to char slot limit, and others wanna exchance their 1000 owl cultists and 2000 harpies for a 5* sentinel child of the damned. i feel like sacrifice is not even gonna come, maybe in 2019 they will give us a sneakpeek of sacrifice... maybe