Magnadramon

On Play All of your opponent's Digimon gain Security Attack -1 until the end of your opponent's turn. (This Digimon checks 1 fewer security cards.) If this card was played by Trial of the Four Great Dragons's effect, all of your opponent's Digimon gain Security Attack -2 until the end of your opponent's turn instead.

On Deletion If you don't have Trial of the Four Great Dragons in play, place 1 Trial of the Four Great Dragons from your hand in your battle area.