Chaos Space Marines Dice.
The Horus Heresy Boxed Set is now being broken up so the elements can be bought separately. If you are looking at this, do the sums first, because the box is actually much better value overall. So this week you can get the Wish I'd Known About This Earlier Age of Darkness Rulebook Special Edition and the Magnus Did Nothing Wrong Age of Darkness Rulebook Standard Hardback. There's also the Legion MKVI Tactical Squad, available in a box of 20, or if you want something specific there's the Legion MKVI Heavy Support Squads and Legion MKVI Tactical Support Squads.
There's also some older favourites from the first Horus Heresy Boxed Sets; Geigor Fell-hand and the Legion Cataphractii Praetor & Chaplain Consul. Like some added extras? Then there's two new Legion Dice sets for Imperial Fists and Sons of Horus.
Some of the best minis in some years are the Genestealer Cults, and this week there's their new Combat Patrol, which is a great set.
The next in the Primarch book series is here too, with Mortarion: The Pale King (Limited Edition) plus the hardback version of Ahriman: Eternal.