So, it's basically another kind of Ability Power, dedicated to supports & utility mages.
After some thoughts and analyzes performed on champions in League, mostly full-utility as, I realized that they have no true way of building. I mean, they do not have any attribute they would scale off. As offensive classes scale off offensive stats, defensive classes scale off defensive stats, what is left for utility classes? They have to increase attributes they don't use that well as other classes. Also, this makes them always no threat at all. And what, if we could make a choice, if we want to play any class offensive, defensive or utilitary (not sure if such a word exist)? Right now, if you'll build full AP on exemplary , you still are not a threat for enemies. Plus, my personal opinion, but my eyes bleed as I see supports/wizards building as tanks. Someone will say, that that's the point and she should not be threat at all, as she is a support I, however will disagree, as she, being a mage, should also have choice of building offensively. But by just increasing her AP scalings, it could make her eventually too strong, considering she is in the right place in terms of balance. And that's why I would like to introduce you:
This would restrict classic Ability Power to increase offensive attributes of spells (damage, damage buffs), while the Spirit would increase defensive attributes of spells (shields, heals, defense/utility buffs/debuffs) and eventually duration of effects caused. Not by large amount to preventlast 5 seconds. Adding Spirit to the game would naturally require lots of work, including changing scaling of most champions and total changes in some other, mostly supports. But wouldn't it bring lots of possibilities, as more , or as wizards on other lanes, like started to support?
I know I probably did many unnecessary things here, but it all was just to show you my idea in examples. The point is to make possible choice between offensive mage and defensive mage. Also, since there would be not enough items granting Spirit, I've added two new ones, one for offense, one for defense. They are the least important there, as this is about Spirit itself. Write down, what do you think!