New summoner spell/Solution to flash

So i've been playing league for about 3 years now and I thought of what COULD be a really fun and practical idea for league moving forward. Let's be honest, how sick are we of always taking the same summoner spells every game and seeing the same champions doing the exact same thing every game. Well my first idea is to add something similar to exhaust, but instead make it a buff and call it "Berserker" or something. The summoner spell would have around or equal to the same cooldown as exhaust but would increase Attack speed, Movement speed, and Tenacity. This would change a lot on it's own. I also believe though that flash needs to be taken out of the summoner spell slot and should instead be an item. This item should be relatively cheap so that players don't have to farm for 20 minutes to flash but should also give no stats other than out of combat movement speed and of course the ability to flash. With this idea though I think it's cooldown should be decreased by a large amount since you will have to pay for the item and it will take up an item slot. But for champions like annie who rely on her flash I feel a 1,000 gold price wouldn't be bad then with the out of combat movement speed, let's say somewhere around 30. It would allow her to roam more easily and make the plays she needs to make to help her team win the game. Annie is just one example and i'm sure some of you can think of other examples. Please point out any flaws that my ideas have as i am sure there are some. Thanks for reading and good luck on the rift!