Non-Classic Champs in Classic

What champs would you like to see added to the game mode that technically wouldn't belong, but for you would be a net positive?

For me it's Jhin. He's by far my favorite champ in the game and one of few "modern" champs that I feel wouldn't be out of place, because his design is essentially flawless and not overloaded 200 years garbage. He's a genuinely unique 1 of 1 champion with a ton of strength that still feels fair to play against.

Plus he would be absolutely cracked with the old rune system. Imagine going into lane with a full crit damage page and just obliterating people with 4th shots. A man