The Last Guardian

[Main] Reveal the top 3 cards of your deck. Add 1 [Cool Boy] and 1 card with the [Royal Knight] or [X Antibody] trait among them to the hand. Return the rest to the bottom of the deck. Then, place this card in the battle area.
[All Turns] When any of your Digimon with [Omnimon] in their names would leave the battle area, [Delay].
• 1 of those Digimon doesn't leave.
[Security] [Security] You may play 1 [Omekamon] or [Cool Boy] from your hand or trash without paying the cost. Then, place this card in the battle area.