to save time, use a spell sequencer loaded with GM and Emotion+something else. But if you
really dont like the spell, sure, you can use
Shadowkeeper to change it(the wizards eye is actually quite the essential spell for a sorc. when soloing, that is.), though i would throw something else away instead of emotion. It CAN turn the tide of battle when used correctly.
Now you can probably see why the sorc is really meant for veterans whom know the spells inside and out...