Not just any fire dragon but THE fire dragon.
NOTE: This is a pun based on the TCG/OCG card Luster Dragon. Its Japanese name is “Sapphire Dragon”, and the name of this card is “Za Fire Dragon”, which is similar to “Sapphire” but the “Za” is read as a separate word: the English word “The”. The flavor text is exactly the same as Luster Dragon’s text, except this dragon is covered in fire, even using the English word for it. Similarly, this dragon is also a Level 4 Normal Monster with significantly high ATK.