Li; Lightning

Syaoran using 'Raitei Shourai'.

Syaoran Li wields a Jian, a Chinese longsword, which he uses as the focus to perform his more powerful magical feats. When not in use (and needing to be able to take it to places where such weapons are not supposed to be taken), Syaoran keeps it sealed in a stand-by form of a Jade hanging charm (which resembles the tassel that hangs from the sword's handle), much like how Sakura's Sealing Wand is in the form of a small key most of the time, when not in use.

Syaoran is shown, or at least implied, to be an excellent swordsman.