Complex sentence: It is Sirius de Alisia's favorite because it can wield a sword, enabling it to perform the and the techniques and due to its long legs and speed, it is perfect for Pierre Vieira' s technique.
Split into simpler sentences: It is Sirius de Alisia's favorite because it can wield a sword and due to its long legs and speed, enabling it to perform the and the techniques. And it is perfect for Pierre Vieira' s technique.