The biggest burst from any creature in the game, it has advantages and disadvantages. On the down side, it is a lot of quanta invested in a card that can just be reverse timed, frozen, antimatter'd, or (the worst imo) parallel universe'd and then lightning'd.
On the plus side red dragons can do the most damage the fastest from one card. If you can get one out early the damage will add up real quick. I like them, vunerabilites and all... the only thing that bugs me is that they're too dumb to just fly over the pile of bones that's blocking them. : P