i don't think i've ever been level 8 in this fight. unless your party is really poorly optimized, you should be fine at lvl 7
to be honest the fight is pretty rng-based, it can be either a breeze or a complete nightmare depending on who that worm decides to focus
last time i did this fight the worm just tunneled (literally) my main character through the entire fight, even with all of the magisters and alex himself hitting it
