Quick question about Yi
So I was top Azir against a Yi and I would trade with him but usually came out ahead. After a while I could poke him down to a 1/4 health pretty easily. Then he would just heal and come back. He would just keep repeating this losing what seemed like no mana. I get how that would make sense if he were only healing, but he was consistently trading with his Q as well. Not only that, but he would trade and with a single Q also clear my caster minions. This was happening until about level 8. At that point he could literally just Q me under the tower, attack me twice and I would die. So my question is how do I deal with Yi?
I would have been fine because I could have just out-farmed him, but he could just tank my damage for the last hits, Q my back line and then go heal. How do I even deal with that?