Hi there toxic i had some ideas for buildings for the shades, i can think of some reactions for them too if you want, the names and the requirements to build can be changed if nessasary but i think there fairly good.
1: Shadowy compressor ( MASONRY to build 4 worthless stone and 4 stone mechanisms) basicly creates slade from normal stone's, but can also make slade blocks from those slade stones, can produce slade anvils from slade blocks(2 slade blocks needed), and slade altars from slade blocks (4 slade blocks needed)
2: Darkened slade heater (ARCATECT AND FURNACE OPPERATOR to build 8 slade blocks 8 stone mechanisms) Supper heats the slade blocks into slade supper heated fragments, provides fuel (12 Coke[for simplisity in coding sake] from 1 block
)
3: Darkend Weaponry (WEAPONSMITH to build 8 slade blocks 2 slade bolders,12 stone mechanisms, 4 statues and 1 slade anvil) produces the shade's weapon's of war from Zakarnite (see 6: for how to produce this metal)(NO INCLUDING RANGED WEAPONS) they should have at least 1 or 2 melee weapons of each type so 2 blunt weapons (hammers maces ect) 2 bladed weapons (swords axes ect) and 2 peirce weapons (spears halbards ect)
4: Darkend fletchary (CROSSBOWMAKING [i think thats the skill] to build 8 slade blocks 2 slade bolders,12 stone mechanisms, 4 statues, 1 weapon rack) produces the shades ranged weapons of war at least 2 types (preferable a crossbow and a type of darkness crossbow or normal bow like weapon [more on darkness later ill make seperate post for that ;-)] the darkness bow/cross bow should be FAR more powerful then a normal crossbow or bow) can also produce ammuniton from slade and can even fashion slade quivers from slade blocks
5: Darkend armoury (ARMOURSMITH to build 8 slade blocks 2 slade bolders,12 stone mechanisms, 4 statues, 1 slade anvil and 1 armour rack) produces the shades protective armour from Zakarnite (see 6: for how to produce this metal) full plate armour, shields ect.
6: Zakarnite fabricator (ALCHEMY to build 8 slade blocks 12 stone mechanisms 8 statues 1 slade altar) The Shades have learnd a way of turning the "inferior" metals of this world into a very powerful metal called Zakarnite, Zakarnite is about 1.5 times better then steel in all ways, but is harder to produce,(hard part... making reactions to throw metal bars into the altar for a chance of Zakarnite[copy paste city]).
ill posit more ideas as i think about them. ;-D this is gona be truely epic.
as mentioned if you want some help ill happly assist if i can.