Darkness players will be off to a quick start, since I imagine most of them will be taking Quanta Leech as their first skill. You gain the XP even if you lose, so there's no downside to it. Does it need a max XP bonus?
Most? All. :V
It already has a limit in that the theoretical max is +10EXP, if the opponent uses a deck of 60 Pillars/Towers. It should go without saying that this will never happen. Pends and other quanta sources also don't count towards Quanta Leech, which will get taken advantage of by a Darkness player's opponents. On average, the ability will provide us with between +1-3EXP per battle, depending on the element on the opponent and their skills; a player with Stall, for instance, is more likely to use more pillars. I think that the ability is well-placed as Tier 1, as it will become less useful as pendulums become more common later in the game.
I'm happy with the change to Mage Hunter, it's still really strong but doesn't completely shut your opponent out of Spells. And yes it does hurt Immo and Nova decks, which is never a bad thing.
Yeah, this is more balanced.
I know one thing for sure.... I'd never want to lose to a Champion of 
Yep. Flee, little elementals!
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Now, I have a query: Pickpocketing 'attempts to steal one of their items.' What does this mean specifically? Is there a chance to fail, for instance, or can it be prevented?
