Metal Impulse

Effect: [Main] Trash up to 3 cards in your hand. For each card trashed by this effect, ＜De-Digivolve 1＞ 1 of your opponent's Digimon. (Trash 1 card from the top of one of your opponent's Digimon. If it has no digivolution cards, or becomes a level 3 Digimon, you can't trash any more cards.) Then, delete 1 of your opponent’s level 4 or lower Digimon.

Security Effect: [Security] Activate this card's [Main] effect.