I no longer spend gems on a tournament. Unless I'm on the last one and times getting close. I just feel like it's a lot of gems to use sometimes for not a guaranteed win. I know nothing is really ever guaranteed but still. It puts me off when I'm doing so poorly and then it's 4 gems for every retry with just as much chance as losing.
But to each their own. If you want to spend gems then u delicately shld and If u don't, we wait for it to come bk.