This card combos extremely effectively with cards like Honed Technique, Follow Through, and the recently-released Aggressive Energy, assuming you can consistently pay for it with both a and a resource. If the stars align, you can draw up to 6 cards off of this. Make sure to load your deck up with Aggression events to get the most use out of it.
Hero Action (attack): Deal 4 damage to an enemy. For each point of excess damage dealt to that enemy by this attack, discard the top card of your deck and add each Aggression (red) card discarded this way to your hand.