How to play Heroes Keep

About Heroes Keep, from BoardGameGeek:

A card game for the whole crew. Whether it's games night at yours, or maybe just that deck of cards you take with you on holiday, this will be the game to play and your soon to be favourite. You start off with a Castle Keep and a hero to defend the Keep. You have a hand of five cards. On your turn you either play up to 2 cards or discard up to 5 cards and redraw. When you play a card, you can either attack your opponent by playing attack cards to reduce the strength of the hero and/or keep, or you play a card with a special ability. When you are being attacked you can either play a shield to defend the attack or play a counter attack card to inflict damage on the attacker. At the end of your turn redraw up to 5 cards. When a player has lost their Keep, they are out of the game. The last player standing wins.