Infermon - P-015 (P-015) - Digimon Promotion Cards

[On Play] Trigger [De-Digivolve 1] on 1 of your opponent's Digimon. (Trash a 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.)