Black Hole - OP09-098 - (Emperors in the New World)

[Main] If your Leader has the "Blackbeard Pirates" type, negate the effect of up to 1 of your opponent's Characters during this turn. Then, if that Character has a cost of 4 or less, K.O. it.
[Trigger] Negate the effect of up to 1 of your opponent's Leader or Character cards during this turn.