I've been thinking on how to change the Mortal Rain list from @EnixLHQ now that we have response from GW about the Dolorous Guard battalion. This is my proposal:
Allegiance: Nighthaunt
LEADERS
Guardian of Souls with Nightmare Lantern (130) - Lore of the Underworlds : Shademist
Lady Olynder, Mortarch of Grief (200) - Lore of the Underworlds : Soul Cage
Reikenor the Grimhailer (160) - Lore of the Underworlds : Lifestealer
Spirit Torment (120) - General - Command Trait : Ruler of the Spirit Hosts - Artefact : Pendant of the Fell Wind
UNITS 40 x Chainrasp Horde (280)
5 x Hexwraiths (130)
5 x Hexwraiths (130)
9 x Spirit Hosts (360)
10 x Grimghast Reapers (160)
BEHEMOTHS
Black Coach (220)
ENDLESS SPELLS / TERRAIN / COMMAND POINTS
Prismatic Palisade (30)
Chronomantic Cogs (80) TOTAL: 2000/2000 WOUNDS: 133 LEADERS: 4/6 BATTLELINES: 5 (3+) BEHEMOTHS: 1/4 ARTILLERY: 0/4 ARTEFACTS: 1/1 ENDLESS SPELLS: 2/3 ALLIES: 0/400
The idea behind this list is using Chronomantic Cogs (with the +3 from Reikenor) so we can move the Hexwraiths 17" on movement phase (12 from the characteristic, +3 from the Pendant and +2 from the Cogs). With this idea in mind, along with our Black Coach, we can surprise our opponent and put our calvalry right where we need it and make a charge, so we can even kill an unit while our blob of Spirit Host are already advancing.
Meanwhile, we'll hold Olynder with 10 Grimreapers as a bait, so our opponent can't commit a side due to our ability to deepstrike. Besides, this pack are both a threat, and a distraction.
Our first priority should be getting objectives and doing some charges so we can lower their numbers, and try to outplay our opponent with our high mobility.
Even failing with the casting of the Cogs, we are moving 15" with the hexwraiths, and their priority should be to engage the enemy so they can't move while we score points from other objectives.
I"ll try this list next week, but any ideas are welcome!