It was painful at first but once you learned how to manage it, it was okay. If fighting a JG team, match away your own CD tiles until you can take her out. Bringing in someone with a blue outlet to take advantage of the extra blue AP helped.
I don’t even have Jean, but I ended with 1434 
ended up below 700 for the first time in about 3 seasons, SW/KK/BP all championed and buffed but got decimated by cascades 2 hops running and gave up, never even reached 800, this was crazy tough, and makes me worry about how I’m gonna compete while transitioning for the next few months
I used my Shield Sim team: SW (167 pre-boost) / Lady Thor (276) / Kingpin (270). I respec’ed SW to 5/5/3, hoping to use either Wilson’s Gambit or Power Surge before my tiles pop. The results are satisfactory in the Sim, getting me to 2K, but not so much in Red Shift. I got cascaded down short of 950, and ended up just under 800 when the dust cleared.