PrinceMamemon (BT13-074) - Versus Royal Knights

[On Play] [When Digivolving] Reveal the top 3 cards of your deck. You may play 1 Digimon card that has [Mamemon] in its name and a play cost of 10 or less among them without paying the cost. Trash the rest.
[All Turns] All of your Digimon with [Mamemon] in their names or the [Royal Knight] trait gain [Jamming] and [Reboot].