When this card would be played, if you have a Digimon with [Knightmon] or [Lucemon] in its name, reduce the play cost by 5.
[On Play] [When Digivolving] Until your opponent's turn ends, their Digimon's effects don't affect 1 of your Digimon.
[All Turns] [Once Per Turn] When any of your Digimon with [Knightmon] or [Lucemon] in their texts are played, [De-Digivolve 2] 1 of your opponent's Digimon.

[Security] [De-Digivolve 1] 1 of your opponent's Digimon. Then, delete 1 of your opponent's Digimon with a play cost of 3 or less.