Last "healthy" champ made?

What's wrong with Reksai?

also was fine for me, but she got nerfed for some weird reason.

"Healthiest" doesn't really apply when it comes to Riot's game design philosophies. Either a champion is healthy or unhealthy, with no middle ground. I personally would say that most of the recent releases are actually pretty healthy.

I personally think Bard was the last released healthy champ, although it would be more than fair to disagree with me. He's got two abilities that are just asking for players to troll with and is severely undertuned right now, but by pure gameplay standards he's pretty healthy. He's got an interesting niche in the game (he's designed as a roaming support), has plenty of counterplay on his abilities, and has a lot of interesting gameplay that comes out of his abilities' mechanics. This also doesn't include the fact that he has some really strong tools that offer his team some really interesting strategies that cannot come out of any champion, mostly with early Caretaker's Shrine starts for jungle or the solo lanes and Magical Journey plays.

wasnt vel too powerful when he came out? I think I joined around the time jinx was released. I cant say I remember too much about him.