Alphamon - Versus Royal Knights (BT13)

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