/ Lucky World Invasion Reloaded: Elemental Lucky Block re-enabled in the Nether only.
/ Overworld + End stay disabled. Crafting stays off (only the LWI block is craftable).

/ >minecraft:overworld
/ type=block,ID=lucky:elemental_lucky_block@chance=0

>minecraft:the_nether

type=block,ID=lucky:elemental_lucky_block@chance=50

/ >minecraft:the_end
/ type=block,ID=lucky:elemental_lucky_block@chance=0