I am going to say that new Black Mage is an equal threat or scarier compared to Summoner.

Better survivability, high damage and even though aoe is small, it can easily hit multiple in chokepoints or group up and constant LB uptime with damage reduction, Heavy status with Sleep.

Now not sure a stack of BLM has the same effect of SMN but effortlessly getting kills, assists and max battle high by just stunlocking people is mad silly at least in FL.

At least this has been my experience with 7 games this week and i can't imagine how obnoxious i looked doing all that