Here are some name suggestions for a rare Halloween dead bride character from the DANDYS world, offering a range of styles to suit different interpretations:

Gothic & Romantic:

• Seraphina Blackwood
• Victoria Nightshade
• Isadora Van Helsing
• Lucretia Moonwhisper
• Evelyn Greyhaven
• Camille Devereux
• Genevieve St. Clair

Mysterious & Ethereal:

• Nyx Holloway
• Wraith Winter
• Lysandra Shadow
• Ravenna Dusk
• Morwenna Mist
• Cassia Revenant

Dark & Edgy:

• Lilith Thorn
• Morgana Blackheart
• Willow Reaper
• Scarlett Crimson
• Ember Ashwood
• Vex Nightshade

Unique & Unconventional:

• Rue Silas
• Zephyrine Bone
• Asteria Grimm
• Calliope Death
• Valkyrie Hollow

These names aim to capture the essence of a "rare Halloween dead bride" while incorporating elements that might resonate with the DANDYS world's aesthetic. Consider the overall tone and style of your story when making your final selection. The names are designed to be evocative and memorable, fitting for a main character.