Catastrophe Cannon (BT5-104) - Battle of Omni

[Main] Trigger [De-Digivolve 2] on 1 of your opponent's Digimon. (Trash up to 2 cards from the top of one of your opponent's Digimon. If it has no digivolution cards, or becomes a level 3 Digimon, you can't trash any more cards.)Then, if you have a [Diaboromon] in play, you may play 1 [Diaboromon] Token without paying its memory cost. (Diaborormon Tokens are level 6 white Digimon with a memory cost of 14, 3000 DP, and are Mega form, Unidentified type, and Unknown attribute.)

[Security] Activate this card's [Main] effect.