Thunderflame Crusher - Beginning Observer (BT16)

While you have a Digimon or Tamer with [Pulsemon] in its text, you may ignore this card's color requirements. When this card would be used, by trashing cards from the top of your security stack, up to having 3 left, reduce the cost by 2 for each card trashed.
[Main] Delete 1 of your opponent's level 5 or lower Digimon. Then, if you have 2 or fewer security cards, place this card at the bottom of your security stack.