It works within itself since you can use excess mana to put -1/-1 counters on creatures, kill them, and draw cards
You may put a land card from among them into your hand
The Meaning of Life, Maybe Most Playable: Future Sight Best Presentation : Well of Lost Dreams Ori Toor is a commercial artist with a unique style whose clients include Adobe, Apple, the NY Times, Cartoon Network, Bloomberg, Wired, and more according to their homepage
Japanese Beta Presentation Charizard ($99K) Card Value: $99,000 Grade: CGC 8 Presentation cards are prototypes that were created to test out formatting, designs, and rules
Promo Info BOOSTER SECRET CRISIS [BT-17] CLOSECLOSE BT17-006 U Digi-Egg Lv.2 Bowmon Color Purple Form In-Training Attribute - Type Lesser/X Antibody/SoC DP - Cost - Digivolve Cost 1 - Digivolve Cost 2 - Upper Text - Lower Text [Your Turn] [Once Per Turn] When an effect places a Tamer card in this Digimon's digivolution cards, this Digimon may digivolve into a Digimon card with the [SoC] trait in your trash
Digital-only cards are everywhere in other digital CCGs because it allows them to take advantage of players not having to do things directly, like searching through their deck or keeping track of a perpetual stat loss