Here is my issue with them, the pictures are either blurry, taken from odd angles, mostly to hide certain imperfections or they are taken in a way that's difficult to tell if the holo pattern is scratched once, twice, or 10 times
1 2 "Digimon Digital Card Battle"
Lower Text - Promo Info BOOSTER CROSS ENCOUNTER [BT-10] CLOSECLOSE BT10-044 R Digimon Lv.3 Parallel Rare Angoramon Color Green Form Rookie Attribute Vaccine Type Beast DP 2000 Cost 3 Digivolve Cost 1 0 from Lv.2 Digivolve Cost 2 - Upper Text [Your Turn][Once Per Turn] When you play a green Tamer, Draw 1
Even if Mathematician gets destroyed in battle, he still helps you out by letting you draw a card to replace him, much like the ever-popular Card Trooper
The win condition of this variation is to mill cards from the top of the deck to quickly access a lot of resources, and using those to finish the duel in a single turn
You could easily use a Cherish Ball or Dive Ball in decks where Heavy Ball was used