So what is the purpose of this card? Put it in your deck and hope it's at the bottom for it to get destroyed by one of those other cards? This is almost certainly too cheap to be hit consistently with Wing Welding.

I feel the biggest issue with this is if you do have three or more barrels at the very bottom, this will force you to draw one, which you really don't want. So yeah, this is kind of crap.

This looks like a pretty good sludge generator. I'm not sure how well sludge will work right now, though. The barrels are pretty cheap, so Trolley Problem might be a good way to deal with the ones in your hand without have to actually spend Mana on them, or maybe Tome Tampering if you have enough of them, but I'm feeling pretty skeptical that it would be worth leaving you with an empty hand.

This should be pretty good because of the excavate. A 4/5 taunt is alright, too.

So Mortal Coil except excavate instead of draw. Cool. Should be good.

Warlock has very little in the way of fel right now, and only one of them is only relevant for lifesteal. Maybe you play this for the sludge, but I'm guessing no. Still, this will likely be a key card in a future deck.

Six 3/3s with rush and a 4/4 for 7 Mana ought to be good since it will clear most threats and leave you in a pretty good position. I think you'll want to be excavating too, so why not play this?

Well, the stealth makes it easy to buff them as much as you want before you attack (or your opponent plays a board clear). This would be an awesome card if the snakes were poisonous. I'm guessing in that case it would need to cost 2, maybe even 3 Mana.

Well, I guess if you don't need hard removal the turn you draw this (or does this count as hard removal since it won't kill something with divine shield?), you can play it when you do need it, but with the possibility that it dies in the process. Probably good either way, but much better if it can kill an 8/8 or something without dying in the process.

This looks alright, insofar as it could leave you with something if your opponent clears the board. 

So a card that wants both handbuffs and board buffs, eh? This could be good, but it really depends on the support it gets.

This might be good. You'll need to avoid running expensive spells for consistency, but who is going to complain about 3/4 taunt plus draw a spell?

Healing for 5 and discover for 2 Mana? Surely that has to be good, right?

This should be easy to play without overloading. Should go nicely in Elemental Shaman decks.

I think this is one of the highest base damage aoes with no condition in the game. Maybe more than necessary. I wonder if it would be better if it did less damage and cost 5 or 6, but then the tumbleweed might have to be weaker, so maybe not.

I'm fairly sure that minion type will be elemental.

So, first collectible card with mega-windfury. It's expensive, but you could heal for up to 16 Health when you play this, and if it survives until next turn, then you could do up to 16 face damage. I'm not counting on that happening often, though.

Damn, 9 Durability on the weapon. I feel like most of the time, the game will be over before you use it all up.

This looks strong, assuming you can build a good deck with enough elementals that you can get decent damage with this. Like maybe play ten elementals in a row.

Oh, I just realized that it doesn't say anything about spending your corpses. This could potentially kill absolutely anything for 1 Mana.