When you would play this card from your hand, reduce
the play cost by 4 for every 10 cards in your
trash.[All Turns][Once Per Turn] When a card is
trashed from your deck, you may play 1 [Impmon] from
your trash without paying the cost. The Digimon
played by this effect gains <Rush> for the
turn.[Opponent's Turn] When an opponent's Digimon
attacks, trash the top card of your deck.