Have to say I hate the idea of reducing cooldowns, even with a decrease in duration. I specially hate the idea of being able to cancel invul. I like that the benifit you gain from it comes with a penalty. As auras are, they make players think before they use one. This adds much to the game. I fear your proposed change would just encourage spamming of auras. I doubt you will get much support for trying to make the game easier. Lastly, you have also given no argument as to why changing them would balance gameplay and even improve it!
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