This cartoon is The Mystery of the Dragon, also called The Adventure of the Brave Tyr. You said it was the male No.2 hob that couldn't shine. As for which is half fire and half ice, freisa, the general of bingyan, died very early. The hero and his father are both called dragon knights, so they all have dragon patterns on their heads. The magic sword warrior is called Xiujil, which is also translated into astral world. I revisited this cartoon some time ago. Baidu Encyclopedia can also be found.