Magnadramon

Effect: [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, you may place 1 [Trial of the Four Great Dragons] from your hand in your battle area.