Its depending on the team if you want to use koh yes than its worth it , but if you close to pull the super rare you should wait and see what you get , and yes its around 3-3.5k power lose but its worth in the long run. If you pull the sr and you already have it gives sh1tty summon points back like 70k or something or less dunno honestly , thats why wait for the pull if you close to it