Angewomon

Effect

[When Digivolving] If you don't have a [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. [Your Turn] [Once Per Turn] When you play a Digimon with the [Four Great Dragons] trait or place [Trial of the Four Great Dragons] in your battle area, 1 of your opponent's Digimon gets -3000 DP for the turn.

Source Effect

[Your Turn] [Once Per Turn] When you play a Digimon with the [Four Great Dragons] trait or place a [Trial of the Four Great Dragons] in your battle area, 1 of your opponent's Digimon gets -3000 DP for the turn.