gundam card game booster box - Newtype Rising (GD01) Level up your existing decks or craft entirely new strategies with fresh card synergies Gundam TCG Steel Requiem (GD03)

You'll need the basic Pokmon in play before you can evolve it into Kingdra ex

Services like PrintMTG clearly label their printed proxies

BT9-012 C Digimon Lv.4 Greymon (X Antibody) Color Red Cost 5 DP 6000 Digivolve Cost 1 Red 2 from Lv.3 Form Champion Attribute Vaccine Type Dinosaur/X Antibody Card Text 1 [Special Digivolution Condition] [Digivolve] 0 from [Greymon] Card Text 2 [Inherited Effect] [All Turns] When this Digimon has [Greymon] or [Omnimon] in its name and an effect would delete it or return it to your hand or deck, you may trash 2 cards of the same level in this Digimons digivolution cards to prevent it from leaving play

Some card effects can allow the player to use another Xyz Monster as a material, usually some Ranks higher or lower than the new one

If you want to use a Team Rocket's Mewtwo ex deck, you're going to need Team Rocket's Spidops to maximize its effectiveness