I thought it would be a good idea if we, collectively, have a look at the new cults as seen in Ritual of the damned.
Let's start with Cult of Prophecy:
Divine the Future.
Warp Charge: 6
If manifested, set aside a D6 until the start of your next Psychic Phase..... can be used for: a hit, wound, advance, or charge roll, as well as a Psychic Test, Deny, or Morale test (For CoP units only)
Guided by the Whispers (Do you hear the voices too?)
Once per turn, after firing overwatch, immediately move up to 6".
Friendly units within 6: Reroll one hit roll, one wound roll or one damage roll.
The Psychic power is a wildcard. The good news is this is an ability that can be leveraged by ANY part of your army. It says nothing about being cult specific. So this could be a save on Magnus, a number of shots roll on a vindicator, or a Morale test on your Cultists.
It is similar to the existing Gaze of Fate power which simply awards a re-roll but in this case you don't have knowledge of what the roll will be.
This is a fun, completely useful in any game type of power. The problem is with the 'per detachment' restriction, this is very hard to have as a replacement for one of the standard powers/cults. But perhaps this shouldn't be over looked. Stacked with Gaze of Fate, you are essentially guaranteeing an action: A Psychic test? A charge? Combining both powers, you'd have to assume you would be saving at least 1, if not 2 Cp per turn. That's not bad and makes an argument for not needing Helm of the Third Eye or Perfidious Tome.
The Warlord trait is useful, but seems too far down the list. If your Warlord is getting charged, you might be in deep trouble already. However, combined with a Disk, or Wings, this essentially cancels a charge. I do imagine that a savvy opponent will pick up on this ability and apply 'false' charges to you to try to trigger the event. Since charges are committed one at a time, this could open up some bad results for you if you're not careful.
Sidenote: A combo I've thought of is to 'react' away from a fight, but position your Warlord into a Heroic Intervention position. OR use "Yoke" to get your Warlord much closer to a reacting Scarab Occult unit.
The Relic might be one of my least favourite. I feel like this is best placed around a firebase unit like a Contemptor or Leviathan. Since the restriction is ONE roll. I'm assuming that's what it means. Maybe I'm missing something but this seems like it could have been a bit better.
What are your thoughts? Could this Cult crack your top 3?