as a quick warning this pack could make your world more difficult to live in, as the sculk creature could spread sculk all over your bases.

this pack adds a new structure to the game, this structure will allow sculk to spread through a mob this structure will spawn, this mob will try to spread the sculk, but this is the only thing it can do as it can't attack you nor anything else, the sculk that the creature spreads can also make new spots for creatures to spawn
although the creature can't hurt anything they will try to hide them selfs by making themselfs invisible and spawning four

there is not much more to say about this, but if you really want to learn more about it i recommend playing because i really dont know how to discribe the datapack this time