Who would you say is a good champion for teaching basic skills?

And I don't just mean a simple champion. Warwick for example is a really simple champion, but other than maybe drilling you on who to or who not to target in a fight (something all champions naturally should be doing anyway), he doesn't really teach you any significant skills that you can build a foundation out of. On the other hand, Ashe too is a really simple champion, but her slows on attack and low base movement speed demands that if you want to get good at Ashe, you need to get good at kiting, a fantastic foundational skill for virtually every ranged champion. Her E and ultimate respectively emphasize non combat and combat based utility, not to mention it gets people to actually look at the map and be aware of it. She's a simple champ that drills good foundational skills that a player can carry elsewhere.

What champions do you think are good at teaching the basics of the game and providing a foundation of skills that you can carry over to other champions?