Dream Crown is a consumable used to turn an Amazon into a Princess, this item can be found randomly or bought at specific Stages (Muspelm, Temple Shalina).
Dream crown ITEM DESCRIPTION (The March of the Black Queen)

Item Description (The March of the Black Queen)

Dream crown 2

Turning an Amazon into a Princess

Dream crown 3
Dream crown 4

Elle (Amazon) turns into a Princess

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