Champion concept idea

okay so I have had this idea for a while now, so I thought I should just post a tread here.

So, we all know how renekton and tryndamere gets fury when they do damage. Tryndamere empowers his Q active with his fury, and Renekton empowers his Q, W and E. And when either of these 2 champions use their abilities, they take from their fury.

So, I was thinking of a sort of hybrid between Renekton/Tryndamere and basically every champion that uses mana. With autos/damage you gain fury, however, you can not use your spells/abilities until you have enough fury. It will be like an empty mana-bar that fills up with autos.

For example, you can only have 100 fury, and each spell/ability costs 50 fury each. So you can cast 2 spells/abilities, then you would have to fill up the fury bar again to keep using spells/abilities.