Cross Tail's threads were created from the body hair of a Super-Class dragon-like Danger Beast that lived in the Eastern region's mountains, high among the clouds. At some point, it was acquired by Lubbock. It was confiscated from him after his capture and remained in the hands of the Empire after his death at the hands of Izou.
Cross Tail is a very versatile Teigu, most effectively used by someone with creativity.
Lubbock often used the wires to create a perimeter used to detect enemies who crossed through them. They can also be used to trap and attack the enemies, be formed into melee weapons such as a spear, or be wrapped around the user's body as armor. The weapons can be disassembled at will, and if a foe is stabbed by the wire spear, it can be unwrapped inside of their bodies to target internal organs, ensuring quick kills. The threads can be easily tied to other objects, such as knives, to control their course in flight when thrown, thus taking the enemy by surprise. It can be used to re-attach an arm of an Animal King: Lionelle user by combining with their regenerative abilities.
Lubbock was also shown to be tricky with his Teigu as he hid strings in his mouth even after Cross Tail was confiscated. He used the string to surprise attack Syura and break his neck.
Realm-Cutting Thread (界断糸, Sakaidan Ito): Lubbock also used a stronger type of thread which is the Trump Card of Cross Tail. It is superior to his regular thread, because it originated from the stronger parts of the original Danger Beast's body. It was strong enough to restrain a Grand Chariot user for a small amount of time.
|V· T·E||Night Raid|
|Faction:||The Revolutionary Army|
|Members:||Akame · Leone · Tatsumi · Mine|
|Deceased:||Bulat · Chelsea · Lubbock · Sheele · Susanoo|
|Teigu:||Lionelle · Murasame · Incursio|
|Lost Teigu:||Cross Tail · Extase · Gaea Foundation · Pumpkin · Susanoo|