A small Nerf on braum's Sheild

Well Braum is alreadly a great champion but his shield from his "e" can absorb LOTS of damage and not break. So why not just nerf it by making it absorb a certain amount of damage before it gets destroy, like if the shield did not get hit, refund half the cooldown and all the mana, if it gets destroy, than don't do anything to the cooldown or mana. So in conclusion, Have braum's shield get certain amount of damage it can absorb instead of 1000 damage and not break Btw its just a suggestion, and its a small nerf to braum