Zechnophobe
Strategy Lich
His balance is fine because he belongs to what is essentially a 1-trait civ. (No, Arcane never counts) With a handicap like that you need something like a really strong hero.
Arcane is pretty mediocre (Though it does help them get nature two a smidge faster) but the other trait is the single best FFH trait there is.
And seriously, even without a trait, the elves ability to build in forests is *extremely* good. Not only can they forgo bronze working for the entire game, but they also get +1 Food, and +1 Production and +1 Happiness from every tile in a city radius, over the course of a game.
The Good elves at least aren't a military powerhouse, but when you can just pick up Poison's, and be basically set for the game, it's a little crazy.