Hello & Merry Christmas to all 
Just some fun with Witchery Hobgoblins & Botania's Orechid, There are alot of ways to make this more efficient & it's not a perfect system but more a method of creating ores & mining them without tech. I did have to slightly tech it with the cobblegen, the XU option is just too tempting over vanilla. Enjoy
Use golem placing stone blocks
Orechids change them to ores
Hobgoblins mine the ores

Just some fun with Witchery Hobgoblins & Botania's Orechid, There are alot of ways to make this more efficient & it's not a perfect system but more a method of creating ores & mining them without tech. I did have to slightly tech it with the cobblegen, the XU option is just too tempting over vanilla. Enjoy

Use golem placing stone blocks
Orechids change them to ores
Hobgoblins mine the ores