Sticking these as an attack with a powerful character near the end of combat could deal big damage, plus the added affect of removing their discard pile from the game. I would still say stick with A Hero's Heart is Strong or Android 16 Detects.

However, the likelihood of that power being used is close to nill... it has to be successful to be useful. Now, that if successful effect wouldn't bother me much if the attack itself was ok, but of course, its not. A simple physical attack, its pretty much useless unless youve got a high power level. As well, its a red card, and doesn't do anything to anger. so its doublely cursed, since most red decks are anger or anger/beatdown, most beatdown decks wont use it because it doesn't do significant damage, and most anger decks wont because it doesn't raise anger. The worst part thou, is that its a rare... if it was common or uncommon i could be ok with it, but this card dilutes the chance of me pulling something good.