I’d just say call lightning itself just needs buffed up a bit. Not to it’s original levels obviously, but give us a reason to actually use it especially now that we have the PvE siege.

Also, Wall of Fire needs a damage component to it, just enough to make it comparable to the oil cauldrons would be fine both on the walls themselves and the cracks between the walls. Those two would be enough on the offense magics part.

Some utility spells we could use as well would be shapeshift(perfectly fitting in the lore) could even have multiple forms like the werehyenas(damage focused), children of jhil(traversal focused), and shaleback(defense focused). Lasts 2-3 minutes and would be a great situational ability without being OP.

And the last one I can really think of sorcerers need specifically with the changes to stamina, call it Unholy Vigor, again 2-3 minute buff which triples the sorcerer’s corrupted stamina(putting it at 1.5 normal stamina). You’d still be weak in health but would definitely be a serious consideration for both pve and pvp encounters, require it to be full corruption to use.