The first thing to fix would be the character art
You will not be permitted to claim or take possession of any lot until the Purchase Price for the lot is paid in full
Considering they require two, three, and four Tuners respectively to Special Summon in the first place, this means at minimum they're dropping onto the field with 4500 ATK, 5500 ATK, and 6500 ATK respectively
Digi-Egg Deck is a separate deck from your main deck and does not count toward the 50 cards in your deck
Lower Text Link [TS] trait: Cost 3 (Plug this card from the hand or battle area sideways into the specified Digimon in the battle area.) [When Attacking] [Once Per Turn] Return 1 of your opponent's suspended Digimon to the hand
Cabal Stronghold You need at least five Swamps on the battlefield before Cabal Stronghold starts producing extra mana, and it just increases from there