They sell booster boxes, trainer boxes, individual cards, other Pokmon merchandise, and also host weekly tournaments inside a massive 10,000 sq ft event space in the back of the shop (making it one of the largest card shops in the country)
Disadvantages: high volatility, risk of damage or fakes, and the need to track the market
One of our main guiding tenets when creating Kaldheim was to go big
8 Blaster, Combat DJ // Blaster, Morale Booster This Gruul Autobot acts as a sort of lord for artifact creatures, giving them modular 1 so they enter the battlefield with a +1/+1, and when they die you can move that counter to another artifact creature
Waning Vengeance (Red) Avg
On the topic of annihilator cards and annihilator X, there are simply too many ways to add +1/+1 counters for this not to be absurd