Complex sentence: Dark Resurrection at the age of 16, making her equal with Ling Xiaoyu as the youngest human character to debut in a "Tekken" game, but she is still very confident in her fighting abilities, as shown by her winning and pre-match quotes.
Split into simpler sentences: Dark Resurrection at the age of 16, making her equal with Ling Xiaoyu as the youngest human character to be introduced in a "Tekken" game. She is very confident in her fighting abilities, as shown by her winning and pre-match quotes.