Raising a Digimon well will result in the Rookie Digimon "Digivolving" into a Champion form with better stats, while not training or raising it well will cause it to Digivolve into Numemon, a Champion Digimon with inferior stats and skills
This relies on a lot of repetitive cards to unleash Extra Deck mayhem, so this can be pretty easy to craft in Master Duel
[1] A player may opt to use sleeves for their Extra Deck that are different to the ones of the Main Deck
BT15-071 C Digimon Lv.3 Alternative Art Loogamon Color Purple Red Cost 3 DP 2000 Digivolve Cost 1 PurpleRed 1 from Lv.2 Form Rookie Attribute Virus Type Dark Animal/X Antibody/SoC Card Text 1 [Special Digivolution Condition] [Digivolve] Lv.2 w/[SoC] trait: Cost 0 [Effect] [When Attacking] By trashing 1 card in your hand, delete 1 of your opponent's Digimon with 3000 DP or less
4 Cybernetic Horizon A card named after the Set, Cybernetic Horizon is both a searcher and a card for setup in the Cyberdark Archetype
What makes Breath of Light, so special is that it has only ever been printed twice
