This Minecraft mod for Forge 1.18.2 add in the Soul Sand Valleys biomes 2 news structures and 2 news mobs :
-The Soulsand Temple : He is very rare but you can find netherite, wither skeleton's skulls and a nether star in the chests
-The wither's invocation : an incomplete wither invocation which is also rare, but less than Soulsand Temples
-The Soul Skeleton : a ghost-skeleton who can fly, that you can often meet in soulsands valleys, they drop an enchanting bottle
-The Soulsand Guardians : The legend tell that they have been the greatest faction of the ancient civilisation, but they became too powerful and the overworld's ancient civilisation has decide to lock them in the Nether. Since this evenement, they protect their treasure in the soulsand valleys with their netherite armors and axe, they give a netherite ingot when they are dead. They rarely spawn and only in soulsand valleys, they are strong, slow and powerful. They automatically attack players and end's creatures, but we don't know why...