Art of War states, " Spot a Red character to reveal an opponent's hand. For each card just revealed, remove a die showing a value that is equal to that card's cost." Since it doesn't specify that you have to remove an opponent's dice, if you reveal a card that costs 2, and your opponent doesn't have any dice with a value of 2 in their pool but you do, do you have to remove your die?

Note: I feel like I already asked this, but I'm too lazy to check XD