Instant — TAP, destroy a Gold you control: Draw a card, then discard a card. If a blue card has been put into your graveyard this turn, you may play cards with watery grave from your graveyard.

The first time a hero is attacked each turn, put a gold counter on this.
Whenever you or an ally you control deals damage to an opposing hero, you remove that many gold counters from this, then create Gold tokens equal to the number of counters removed this way.