Generate a colossal, vertically des...

Generate a colossal, vertically descending chain (2 huge chains that's linked) (only 2!!!!) don't carry on the chain because I want the 2 chains to be unbelievably big. in a Minecraft environment. The chain links must be impossibly massive, built from rusted iron, deepslate, and oxidized copper blocks, dwarfing the player to trigger intense megalophobia. The chain extends downward into a pitch-black, empty void. The top links are faintly lit by a single, distant cold light source, while the bottom of the structure fades completely into thick, impenetrable darkness or fog. No other structures, terrain, or background elements—just the solitary, massive chain suspended in an eerie, liminal emptiness that feels cosmically huge.