As a deck-building game, the fundamental axis of the game are the Cards
In contrast, an English chase card with low pull rates can become very expensive on the secondary market
Few Pokmon can shift a game's tide as efficiently, no matter how strong they are
Both apply continuous advantages to the players who has them, both apply to one and only one player, and both have very narrow interaction with other cards, only ones that explicitly mention them
Popular Lady of Lament Yu-Gi-Oh
Then, until the end of your opponent's turn, 1 of your opponent's Digimon gains "[Start of Your Main Phase] This Digimon attacks." Card Text 2 [Security Effect] [Security] De-Digivolve 3 1 of your opponent's Digimon