Practice Mode

So I had an idea for a gamemode that would allow people to practice champions combos and fighting situations over and over again. For example lets say i want to practice ward hops i have to keep backing to refill and , or if i want to practice assassination combos on a bot, they never go where i want them to go or are too easy to kill, and i have to wait for my ult to come up again. In general its tedious and way harder than it needs to be. I propose that there is a gamemode where you set the variables such as your level and items, and then you can place dummies that you program their path, or maybe a few paths and the game randomizes which one happens. Also allow for a few champions to be placed so maybe when you jump in a tries to hook you. Also, all the cooldowns are the same but you can reset/change the situation at will and have a button to reset your cooldowns. Just me thinking, I know i would love to have this gamemode, but in the end it only really matters if the community and more importantly riot like it.