Liberation

"[Main] If the number of your Characters is at least 2 less than the number of your opponent's Characters, K.O. up to 1 of your opponent's Characters with a base cost of 6 or less and up to 1 of your opponent's Characters with a base cost of 4 or less. [Trigger] Negate the effect of up to 1 of each of your opponent's Leader and Character cards during this turn."