Judgment of Hell – Paramount War (OP02)

[Counter] DON!! -1 (You may return the specified number of DON!! cards from your field to your DON!! deck.): Give up to a total of 2 of your opponent’s Leader or Character cards -3000 power during this turn.
[Trigger] If your opponent has 6 or more DON!! cards on their field, your opponent returns 1 DON!! card from their field to their DON!! deck.