Let's Meet Again in the New World (OP10-115) - Royal Blood Release Event Cards

[Counter] Up to 1 of your Leader or Character cards gains +4000 power during this battle. Then, if you have 0 Life cards, draw 1 card.

[Trigger] K.O. up to 1 of your opponent's Characters with a cost equal to or less than the number of your opponent's Life cards.