I fully agree with the original post concerning the spells Web (shouldn't be just a surface), Mirror Image (implement it like the PnP version please) and the absence of Shield (maybe a pop-up menu if you have Shield prepare and the necessary slot available once you know the opponent's attack roll?). Mirror Image and Shield are particularly problematic. Wizards and Sorcerer depend on defensive spells to survive in battle. Even with the PnP version of Mirror Image and Shield, you still should be careful not to get in the thick of the fight because you don't want to be forced to use precious spell slots to simply avoid getting hit and do little else. It wouldn't unbalance the game to keep these 3 spells like their PnP original versions, especially since the martial classes have been given new weapon abilities to work with.