To get the most out of Black Swan, you need to build her around her signature damage-over-time mechanic: Arcana. This five-star wind Nihility character stacks Arcana on enemies, dealing wind DoT each turn. Crucially, she gains extra stacks when hitting enemies already afflicted with any DoT—wind shear, bleed, burn, or shock—and her talent lets her ignore 20% of DoT defense. The more...