As a true noble vampire, Mika is able to wield a first-class vampire sword and its abilities similar to them. When he orders the weapon to drink his blood, it sprouts thorny vines that pierce through his hand, while spreading all around and additionally, turning the blade crimson in color. As a result, Mika's strength and speed would then grow in proportion to the amount of his blood the sword drinks.
-- From Wikipedia
Replica of Mikaela Hyakuya's broadsword (Blood Version) from the anime series Owari No Seraph. 105 cm. Entire katana, including the "blade" is made of wood. Comes with high quality wooden scabbard. Perfect for costume use and cosplay.