|This article is about a/an Mirror Monster in Kamen Rider: Dragon Knight.|
Siren slots her cards in the crossguard of her rapier called the Blanc Visor. Can be used as a weapon if she doesn't have enough time to slot her cards.
- Attack Vent: Summons Blancwing to directly attack her enemies.
- Sword Vent: Conjures a twin blade-like weapon
- Guard Vent: Conjures a shield and shoot feathers to confuse enemies.
- Final Vent: Summons Blancwing for Siren's Final Vent. Blancwing attacks the enemy from behind by producing a gust with its wings sending them flying into the path of Siren's sword attack.
- Link Vent: Unites and unleashes the power of all of 13 Final Vents.
- Its name is derived from the word "blanc", french for "white", and the word "white".
- When Blancwing appears, it sounds like an eagle, while its Japanese counterpart sounds more like an actual swan.
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