It's a rather simple mechanic, but mechanics that are simple to understand at first often allow for deeper lines of play than it might appear at first glance
The physical trading card game challenges players to build customized decks utilizing complex strategies, powerful monsters, and clever spell and trap combinations
Dekoichi provides defense, card advantage, a sizable body, and if hit by Nobleman of Crossout it becomes three bodies when Dimension Fusion is played
Then creatures you control get +X/+X until end of turn, where X is the number of cards in your hand
In 2019, they were replaced by a split between Draft Booster , Set Booster , and Collector Booster , each with different card-per-rarity ratios