Effect: [Main] Trigger <De-Digivolve 4> on 1 of your opponent's Digimon. (Trash up to 4 cards 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.)
Inherited Effect: None
Security Effect: [Security] Activate this card's [Main] effect.