I highly suggest if you want to beef up your team, do it today. You have a plethora of stupid players who saw Most Feared and thought, "well I guess I'll sell my entire team". First off, the players aren't coming out until AFTER MCS. Secondly, the ones that dropped today you have to win by PLAYING THE UNDERCITY EVENT WHICH WON'T DROP UNTIL THE UNREAL MOMENTS EVENT IS OVER. Unreal Moments still has another release tomorrow. Usually during these periods is when you can clean house on Ranked because too many players got rid of half their team waiting for a new release. I can tell you for a fact as a top 100 season 1 and top 100 season 2 and i've played king henry multiple times now, dottimus, fancy, you name it, none of them are outright selling their team until cards actually DROP. Nobody is going to take a few days where there team is ass just to get new cards. You have to learn to take the losses in the new drop and make up for them by playing H2H SBs and Ranked during that few day stretch. 1 Legends SB is 300k+ coins, it does not take long to win a SB, maybe 90 minutes tops if your good, i've won a few FBs going 8-0 in under 30 minutes due to quits.
AH is just like the stock market, don't participate in the panic sells, sell when your card has fully matured (worn out its usage), not because you want to get a different card.