Summoning Legendaries Paramount Strategies Scheme RAID Shadow Legend

It’s tough to get legendaries in RAID Shadow Legends, let alone trying to get that most coveted powerful Champion. I came up with some paramount strategies scheme to give a chance against the low probability and hopefully the law of averages would chance upon you. However it is still as tough as ever. There are times when the odds are just against you! All I could get were the Rares, and not even an Epic! It feels like the system has scam you!