GoddammitDontShootMe

I'm guessing there will be ways to exploit this. About half the arcane spells don't benefit from being doubled though.

1 mana ping and draw is at least decent, right? Nothing amazing of course.

Right now, there's just about nothing for Resurrect Priest, so for now I question this card's viability. Maybe another deck can use it, but I have no idea what costs 3 or less that would be worth bringing back.

3 mana discover two cheap spells seems alright, since Mage's pool is mostly good, but I'm not sure what the point of the swapping part is. Was the card too boring just discovering the spells?

This can potentially remove anything with up to 7 health for 2 mana. Not bad. I assume this gives attack and health to your minions in summoned order, and if the target runs out of one before the other, subsequent …

This will let you play a 4/4 [card]Foul Egg[/card] for 0 mana, won't it? I'm not sure if this will be better for playing low-cost minions for free with a buff, or high-cost minions for cheap where the deathrattle is …

This is going to take a hell of a lot to fully get rid of. Still, each minion summoned is only 1/1, so you'd probably want to have buffs handy next turn. [card]21152[/card] on turn 2 seems like a nice …

Will this be the card that make Deathrattle Rogue great, or does Rogue need more deathrattle minions or something? Lot's of neutrals, so I'm not sure why they wouldn't work.

More Thief Priest support. Seems to be quite a lot of that, but I'm not aware of it being a very strong archetype, so I guess it needs more?

This shouldn't be hard to play for cheap. Especially with [card]Underking[/card], which has a very good shot at making this free by itself.

Even single concoctions look reasonable at 3 mana, so playing a mixture of two, or all three for nothing? Sweet!

Well, this should be really good in a Big Shaman deck or anything that uses mostly expensive minions.

I'm going to guess they're printing more outcast cards, since you would want to play a lot if you are running this card, and we've only seen two DH cards so far.

Oh hey, [card]Deathstalker Rexxar[/card]'s hero power on a minion, so that, barring copying, you can use it a maximum of twice, and it isn't available at all times. And I have no idea if Rexxar is even any good today. …

I guess this doesn't do a whole lot when played, but I doubt many can complain about an additional 3/3 for free.

Given that this only gives one concoction per turn, I think you have a much less chance of getting a Mixed Concoction with all three effects than with [card]Potionmaster Putricide[/card], but then, this is an epic, while the other is …

12 armor plus a 6/6 rush for 7 mana can't possibly be bad, can it? You might even get all 12 armor the same turn if there's a big enough guy to trade this into. 

Looks like a pretty good defensive card, but the attack seems pretty low, so I'm not completely sure how strong this will be. The deathrattle combined with its lifesteal, along with the fact it has reborn, so it might do …

Looking at Neutral/Warlock deathrattle minions that might die before this does, nothing really stands out for this to gain. Maybe [card]Banshee[/card], or possibly [card]Foul Egg[/card]?

I assume that the text of Mixed Concoction changes based on what other concoctions you get. If you get all three, that's a lot for 3 mana, and in the right deck, it will be extremely easy to kill three …