Gum-Gum Lightning (OP09-077) [Emperors in the New World]

[Main] <strong>DON!! 2 <em>(You may return the specified number of DON!! cards from your field to your DON!! deck.)</em></strong>: K.O. up to 1 of your opponent's Characters with 6000 power or less.<br>
[Trigger] Add up to 1 DON!! card from your DON!! deck and set it as active.