Suggestion for Practice Tool: Slowdown

I was remembering this feature from some fighting games, and was thinking it could be a cool idea to eventually implement into the Practice Tool. Slowing down the game in real time and get to do combos and train skills at a slow speed, then slowly work our way up into doing it a bit faster. I think .05 and .25 speeds could be useful to perfect some combos or interactions that require a lot of precision. I feel this could work great on perfecting some champions as well as finding new cool creative interactions that you may be able to notice when the game is running slower.

Not sure if the technology exists to do this, but I thought it could be a fun neat addition to the Practice Tool.