digimon bt9 booster box Card Game: Next Adventure BT07 : Toys & Games Includes numerous powerful cards Amazon.com: Digimon: Special Booster Version

My first recommendation to you is, don't bother with the packs yet until you know exactly what you want (Just buy the packs listed in my walkthrough 5.2 - Optimal Progression Guide (Unlocking more cards) for now)

They also have arrows surrounding the Card Art, known as Link Arrows

If all of these conditions are true, you will instantly win the game when using this attack

They're reskinned versions, with the same rules text, but in-universe MTG art and names

Infernity Guardian X DARK Level 4 [ Fiend / Effect ] ATK 1200 DEF 1700 While you have no cards in your hand, this face-up card cannot be destroyed by battle or by card effects