Custom Patching
Sometimes you like things from old patches. So what if you could custom build old things, like just individual champs from before, bring back items you like, etc. not to say the entire game would be like that patch way back then, but rather only what you want to change, so the default would still be the up to date version.
For example: if you miss unlimited wards and pots and multiple gold items. imagine a support with 4 gold items and the map completely bright. Or if you miss when your favorite champ was OP, bring them back to their old glory.