As for the card prices, you may be able to put some extra dollars/pounds onto the prices shown when selling them but they are not massively rare cards so I would personally advise not to sell them for too much
Without it, you can't survive, of course, but with bad food, you don't really live
Level up creatures help with curves and give you some nice wiggle room in the ratios of your decks components
Parmi les retours de la communaut, laccent est souvent mis sur limportance dune infrastructure solide et stable
BT11-065 U Digimon Lv.4 Snatchmon Color Black Cost 6 DP 6000 Digivolve Cost 1 Black 3 from Lv.3 Form Champion Attribute Unknown Type Unknown Card Text 1 [Effect] [When Digivolving] You may place up to 2 [Vemmon] from your trash under this Digimon as its bottom digivolution cards
As you know, in the world of Pokmon, the earlier and rarer, the better