The Ligre Tempesta di Cieli, nicknamed as Bester, is a Sky-attribute and Storm-attribute Animal-type Box Weapon. It is a very rare Box Weapon, possessing the special traits of the Leone di Cieli and the Tigre Tempesta.
The Ligre Tempesta di Cieli is based on the hybrid feline liger. Its fur and mane is white with black tiger stripes and black tuft on its tail. Its mane is covered in Sky Flames.
It is speculated that the Ligre Tempesta di Cieli was originally the "White Leone di Cieli", and its current form is its mutated figure caused by Xanxus injecting its Box with Flames of differing attributes.
Similar to the Leone di Cieli, many parts about its abilities are unknown. Though, its Flames undoubtedly possess the characteristics of both the Sky and Storm Flames simultaneously.
Just like how Xanxus' scars are revealed when he is enraged, the Ligre Tempesta di Cieli also has its own "Rage Mode", in which tiger stripes appears on its body.
- Scratching (引っ掻き, Hikkaki?)
- Biting (噛み付き, Kamitsuki?)
- Rage Mode (憤怒モード, Fundo Mōdo?)
- Lacerating (噛みちぎり, Kamichigiri?)
- Crash (激突, Gekitotsu?)
- Ruggito di Cieli