THE GREATEST IDEA FOR A NEW CHAMP EVER !!!!

ok so everone remembers that yu-gi-oh (copyrighted and im not sure if i can use their name in this ) but remember the card "change of heart" and it was half angel half demon and its ability was to change a monesters loyalty to the other player so what if there was a champ whos ult would temporarily change an enemy into an allie but not control them meaning *they couldnt attack you ,their turrets and minons, would turn against them , if you used this ult on the person of that team that last hit baron or dragon BOOM you just stole dragon or baron * but the duration should only be like 5 or 6 sec their other 3 skills would utlize the half angel or half demon side maybe 1 dmg spel 1 light cc spell and a buff maybe ? the community can brain storm on the skills part but all im asking is if you make this champ because of my idea can i has it for free ? just this one?