Since bosses these days that are shadow school and since their actual spells are shadow school instead of the regular school for which we buy shields from sabrina to defend against those spells, we should also be aboe to train shadow shield as an actual spell, especially when having to fight bosses solo like the shadow trickster that not only uses the shadow creature spell but has some magnificent Regular spells enchanted to shadow school, like bug squall for an example, tough spell to defend. What would also be great is shadow dispels as well, but i would understand a good reason that spell doesn’t exist, yet still would make things extremely easier.