Metal Impulse

[Main] Trash up to 3 cards in your hand. For each card trashed by this card's effect, ＜De-Digivolve 1＞ 1 of your opponent's Digimon. (Trash the top card. You can't trash past level 3 cards.) Then, delete 1 of your opponent's level 4 or lower Digimon.

Security Effect [Security] Activate this card's [Main] effects.