Idea for ardent Censer

this item is pretty rare, you dont see that often because it's not that appealing to buy, and even if u do it's always on . I would propose to make it so that any spell cast on an allied champion wiulld proc the magic dmg on hit and atk speed boost. So that maybe this poor guy can buy it as support i dunno maybe someone has a better idea for this item because it is pretty lackluster atm.