Going to show some quick images here. Lets get out the white elephant in the room to start with.... the hero. My first thoughts is it looks a little silly and goofy. Hopefully it has some excellent rules or it is something I would think most people would just not pick up. Hopefully it looks better in person.
Meanwhile....... Home run for the catapult. Wow.
via the Warhammer Community
This is a Mortisan Soulmason – one of the strange and sinister heroes who command the Ossiarch Bonereapers in battle. Like Stormcast Eternals, Ossiarch warriors are formed from the souls of the fallen in the Mortal Realms – but where any given Stormcast warrior is made from a single soul, each Ossiarch is formed from a rich blend of harvested soul-stuff, combined from dozens or even hundreds of different sources to make the perfect warrior.
It’s the Mortisan Soulmasons who are responsible for overseeing this process, working with a butcher’s precision and ruthlessness to find the very best spirits for their dark work.
The Mortisan Soulmason is a cracking model, covered in details that connect it to the wider Ossiarch Bonereapers army and beyond. Tiny vials filled with souls mirror those carried by the Sacrosanct Chamber. Their strange chair-construct resembles larger monstrosities, like the Gothizzar Harvester, while their multiple arms tie them to the Necropolis Stalkers.
Look closely and you’ll see the model is also closely linked to Arkhan the Black, featuring similar armour and headgear.