Wait what buff is that, why is it MOVING

I came across this video on Youtube.com just after a game I was trying to un-tilt from. I had a few thoughts when he talks about how the shape shifter would attach itself to an ally and provide a damage reduction buff or be able to soak up damage somehow for the targeted ally. I have been thinking for a while about the changes to Rift Herald and how they applied a 20 min buff (I think) that enhances your champion. What if Riot made a jungle creep that roamed across the entire jungle that did the same thing when you killed it, it would attach itself to you and provide a sort of damage reduction buff that lasted for say 2-5 minutes. You wouldn't know where it spawned or if it was up, and if you saw it you would have to weigh the risks of do i follow this jungle creep around and hope they enemy jungler doesn't kill me or the bot-laners don't come up to kill me or do I just let it roam the enemies jg and hope the enemy jungler doesn't take it instead of me. A buff like that would become contestable and make game play faster and more engaging, as well as encourage people on the entire team to buy more wards and make more warding runs. Let me know what you think about all that I think it's a pretty neat concept. :) -ABigThreshSoul