Flame Princess is a Hero Card in Card Wars. It can be obtained as reward in Quest 15.
(4 Turns) Draw 2 Cards.
Overall a good card used in longer games which is fairly handy but doesn't help the creatures you already have on the field.
Always use this card as soon is possible (unless you have 6 or more cards in your hand). Also, use the card at the start of your turn to consider all available options before spending magic points.
This card is not exactly counter-able unless of course you defeat the opponent very quickly or nullify their options, therefore clogging up their hand.