Pokemon cards has soared during the COVID-19 pandemic, leading to limited supplies and a scorching hot market that is driving some people in North America to erratic and violent behaviour.McDonald’s recently issued a statement urging restaurants to set a “reasonable limit” on Happy Meals sold per customer, after a promotion that included free packs of Pokemon cards resulted in fans going to “extreme lengths” to get them — in some instances, buying out dozens of happy meals and re-selling the cards online for hundreds of dollars.And in Brookfield, Wis., police reported four men attacked another man over the cards on May 7.Shortly after, Minneapolis-based retailer Target announced it was suspending all in-store sales of Pokemon and sports.