Text: Your MC must be a Villain. This can be triggered at the end of Setup. YOUR MOVE Reveal and discard 1 card from your hand: A Mono or Dual Ally you attack with this Round can gain BOLD and its attack can't be nullified.
FAQs/Rulings
When can I activate Ruthless Aggression?
You can trigger it at the end of Setup or during Your Move by revealing and discarding 1 card from your hand.
Does the attack remain protected from nullification for the entire Round?
No, only the specific attack that benefits from Ruthless Aggression that Round cannot be nullified.
Can I use Ruthless Aggression on multiple Allies in one Round?
No, you can only apply it to one Mono or Dual Ally attack per activation, and only once per Round.