151 jumbo booster box Simplified Chinese Pokemon Gengar Vol 3 'Collect 151 Surprise' This set is a the Chinese equivalent of Scarlet 5 Pack Chinese 151 Surprise

And alongside Mystic Forge or other cards that let you play from the top of your library, plus some effect that reduces the cost of artifacts (such as Enthusiastic Mechanaut or Foundry Inspector) you can set up an infinite combo and draw as many cards as you want

Promo Info Tamer Battle Pack 27 CLOSECLOSE P-176 P Digi-Egg Lv.2 Parallel Rare Dorimon Color Black Form In-Training Attribute - Type Lesser/X Antibody/Chronicle DP - Cost - Digivolve Cost 1 - Digivolve Cost 2 - Upper Text - Lower Text [When Attacking] [Once Per Turn] This Digimon may digivolve into a Digimon card with the [Chronicle] trait in the hand

2000 - No

We don't really need even more blue no cost counter spells, yet here we are