Alphamon

[On Play] [When Digivolving] By placing 1 Digimon card with the [X Antibody] trait or the [Royal Knight] trait from your trash under this Digimon as its bottom digivolution card, all of your opponent's Digimon with a play cost of 10 or higher can't attack players until the end of your opponent's turn.
[All Turns] [Once Per Turn] When this Digimon would leave the battle area by an effect, by returning 1 Digimon card with the [X Antibody] trait or the [Royal Knight] trait from this Digimon's digivolution cards to the bottom of your deck, prevent it from leaving play.