When you reach the arcane tower you'll want to pay attention to the turret patterns, they telegraph their attacks with a distinct glow giving you about 1.5 seconds to react. For sorcerers specifically, positioning near the stone columns gives you good angles for lightning spells which absolutely shred through their defenses, and youll want to time your casts during their recovery animations. The best approach is setting up sussur blooms first, which takes about 3 seconds to deploy, then hitting them with spells like lightning bolt or witch bolt while they're vulnerable.

Good to know that metamagic really shines here - quickened spell lets you drop a sussur bloom and blast in the same turn while twinned works great for handling multiple turrets. When bernard starts his sequence, watch for the blue magical patterns on the floor, they pulse three times before activating which is your cue to move. The basement area gets trickier since the turrets there have faster attack cycles but if you grab the staff of arcane blessing first, your spell accuracy gets a nice boost making those tight spots more manageable. Just remember that wild magic can get a bit unpredictable in here so maybe keep some scrolls of lesser restoration handy just in case things go sideways.