ok so ive come up up with a dark fusion card thats kinda like FHD but for dark monsters only now it might seem oped but i think scince it require 7 different dark monsters its pertty even XD
7 "dark" monsters with different names.
This card can only be fusioned summon. This card cannot be destroyed by card effects.Tthis card cannot by banished. This card can only be destroyed by battle with a "light" monster. Once per turn you can bansih a "dark" monster from your graveyard to special summon 1 level 8 or higher "dark" monster from your deck, hand, or graveyard ignoring its summoning conditions.
7 "dark" monsters with different names.
This card can only be fusioned summon. This card cannot be destroyed by card effects.Tthis card cannot by banished. This card can only be destroyed by battle with a "light" monster. Once per turn you can bansih a "dark" monster from your graveyard to special summon 1 level 8 or higher "dark" monster from your deck, hand, or graveyard ignoring its summoning conditions.