The Shadow Diamond is an alternative to the 
Diamond for the crafting recipes in Magic Storage. Each vanilla boss (King Slime, Eye of Cthulhu, Eater of Worlds or Brain of Cthulhu, Skeletron, Queen Bee, Wall of Flesh, The Destroyer, The Twins, Skeletron Prime, Plantera, Golem, Duke Fishron, Lunatic Cultist, and Moon Lord) will drop one Shadow Diamond the first time they are killed with the Magic Storage mod active. Note that Eater of Worlds and Brain of Cthulhu share the same drop: after killing one of them, no drop will be obtained from killing the other. There are therefore a total of 14 Shadow Diamonds that can be obtained in a given world.
Crafting
Recipe
Used in
Diamond for the crafting recipes in Magic Storage. Each vanilla boss (King Slime, Eye of Cthulhu, Eater of Worlds or Brain of Cthulhu, Skeletron, Queen Bee, Wall of Flesh, The Destroyer, The Twins, Skeletron Prime, Plantera, Golem, Duke Fishron, Lunatic Cultist, and Moon Lord) will drop one Shadow Diamond the first time they are killed with the Magic Storage mod active. Note that Eater of Worlds and Brain of Cthulhu share the same drop: after killing one of them, no drop will be obtained from killing the other. There are therefore a total of 14 Shadow Diamonds that can be obtained in a given world.
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