Enduring Scalelord + Altered Ego When talking about infinite combos, most people think about life or mana, but infinite counters are also a thing
Bench attackers like Garchomp ex can also snipe it before you have a chance to evolve it
On one hand, between the plethora of Pokmon with moves that deal damage randomly in some way, the risks of hands being bricked with too many Energy or Pokmon cards, and the alternate win conditions, a novice player with a suboptimal deck is always within a remote chance of winning such that they may not readily learn the deeper theory of deck construction being about mitigating random factors
By giving one face-up Normal Monster of your choosing to your opponent, you force them to do the same with one of their Monster cards
Done with a metal-like surface, its a more upscale look and feel
Many of the auction platforms also do not provide information about whether or not sold items were actually paid for meaning that a sold price may be meaningless if no one actually paid that price for the item