Magnadramon (EX3-036 R) [Draconic Roar]

Product Details

[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.