Once a match:
On your opponent’s turn, if you have fewer cards in play than your opponent:
Blank the text of a card hit this turn if it is not the first card hit. The card is blank until the end of the turn.
Compendium / Rulings
Note: Blanking a Finish after it has hit (Before Breakout Rolls specifically) as the second card of the turn; and already resolved its Finish Roll will not back track and remove the boosts for said Finish Roll. If you don’t want the bonuses to be a factor you should blank it as it is hitting; prior to card text resolution.