Announced via WarCom
Slaughter Queen on Cauldron of Blood (which can alternatively be built as a Bloodwrack Shrine or a Hag Queen on Cauldron of Blood)
5 Melusai Blood Sisters (who can be built as Blood Stalkers)
5 Khinerai Heartrenders (who can be built as Lifetakers)
5 Doomfire Warlocks, and 10 Witch Aelves (who can be built as Sisters of Slaughter)
Swampboss Skumdrekk
Gobsprakk, the Mouth of Mork (who can also be built as a Snatchaboss on Sludgeraker Beast and Killaboss on Corpse-rippa Vulcha)
10 Gutrippaz.
What’s the most Christmassy sound? Jingle bells? Da Red Gobbo sneaking down the chimney? Nah, it’s a bunch of squigs all going booooooing! The Squiqalanche consists of a Loonboss on Giant Cave Squig, two Mangler Squigs (who can be ridden by Loonbosses), 10 Squig Hoppers (who can be assembled as Boingrot Bounders), and a 12-strong Squig Herd. Don’t let their randomness fool you – there’s a LOT of gnashing teef in this army.
Grey Seer on Screaming Bell (which can also be built as a Plague Priest on Plague Furnace)
1 Warlock Bombardier
3 Stormfiends
40 Clanrats, and
40 Plague Monks
Lady Olynder
Mortarch of Grief
1 Black Coach
10 Bladeghast Revenants
10 Dreadscythe Harridans
10 Grimghast Reapers
Drycha Hamadreth
2 Treelords (which can alternatively be built as a Spirit of Durthu or a Treelord Ancient)
10 Spite-Revenants (which can be built as Tree-Revenants)
16 Sylvaneth Dryads
Knight-Relictor
3 heavily armed Annihilators
10 Vanquishers
10 Vigilors armed with stormcaller bows
2 Stormdrake Guards (one of which can alternately be built as a Knight-Draconis).