I know the last update said that the difficulty changes were to legendary, but I swear they must have made world class harder too. I've been scraping 1-0 wins against terrible teams in SB on world class difficulty. Before the update, I could 5-0 average teams on legendary without too much trouble. I don't play a lot of squad battles, but I don't know if I could even beat the AI on legendary anymore unless I showed up with my real team.