I really like this card. It's powerful, not as expensive as the dragon, and has the ability that makes it worthwhile, especially in a Light/fire deck I've already considered making.
I'm not much on criticism for most any card, as they all have their uses, but if there is anything wrong with this card, it's that it costs a lot of quanta for something that will likely die on the first turn out. Fire cards are like that, but the dragon won't die so quickly, and it's one quanta higher, while the phoenix is cheaper, and while it doesn't deal out as much, it's rebirth ability is invaluable.