Raijinmon BT9-042

Effect: [Hand][Main] If you have a Digimon in play with [Justimon] or [Raidenmon] in its name, you may pay 1 memory to place this card under that Digimon as its bottom digivolution card.[When Digivolving] You may trash 1 Digimon card with [Machine] or [Cyborg] in its traits in your hand to have 1 of your opponent’s Digimon get -4000 DP for the turn.
Inherited Effect: [When Attacking] 1 of your opponent's Digimon gets -4000 DP for the turn.