I respectfully disagree, and here's why:
Corsair Cache was/is typically used to draw 1 of 3 weapons: Wrenchcalibur, Ancharrr, or Livewire Lance.
In each of these 3 scenarios, the card always felt very powerful. Turning Wrenchcalibur into a 4/3 weapon meant that it ended up dealing 6 extra damage and adding an additional Bomb to the opponent's deck, Ancharrr dealt an extra 5 and drew an additional pirate, and Livewire Lance dealt an extra 5 and generated an additional Lackey.
The value gained from Corsair Cache in these instances ended up being (over the course of multiple turns) 2 mana to draw a weapon, deal an extra 5-6 damage, and generate another resource, be it a card or a Bomb. This damage and resource generation for such a low mana cost was very difficult for many decks to deal with, and led Bomb/Tempo Warriors into going face more often because they knew they could just finish you off with their weapon which would deal 9-12 damage because of Corsair Cache.
This of course was very strong, hence the nerf. What the nerf to Corsair Cache did was effectively cut the additional damage output in half, from 5-6 to 2-3 additional damage, which prevented these Bomb/Tempo Warriors from beating you down as easily as they had been doing. It's similar to the nerf of Boggspine Knuckles, which was simply just doing too much damage on it's own for decks to deal with it on top of the minions it was generating.
Unnerfed Corsair Cache would be even scarier now that Spiked Wheel exists. A 1 mana 4/3 (effectively) weapon would be insane in any aggresive Warrior deck, so unnerfing the card now is definitely out of the question while the card is in Standard.
As for changing the card to 1 mana, that would make the card ridiculously powerful as well. 1 mana cards that draw a card are incredibly powerful, see Consume Magic, Crimson Sigil Runner (which has been nerfed), Flare (which was nerfed from 1 mana to 2), Kobold Librarian and even Mortal Coil. All of those cards are/were quite strong, and they don't draw a specific card.
A 1 mana Corsair Cache as it stands now would be an immensely powerful card and would be an auto include in any Warrior deck that runs weapons.
In Wild it may be a different story, and it could maybe be reverted back to it's initial form, but as long as the card is in Standard I believe it should remain how it is.
TL;DR: It would be too powerful in Standard in it's original form thanks to it's previous uses alongside the addition of Spiked Wheel, but when the card rotates I could see it being unnerfed.
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Found deck of lunacy in a pack today, lol
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Cool flavour. The English in the text is broken, just like the card.
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You're not supposed to pay money to get the new mode, that's just a bonus for preordering the packs, if you don't care about the packs of course the price is not worth it. Also why are you dissing the streamers? They're jusy doing their job, they're not supposed to tell you not to pay money for something you don't like.
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It's a spell
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This elemental can resurrect your minions from just ash! I hope it can revive this thread too.
Next give paladin, priest or shaman some card draw because they need it.
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This tier list is actually good. The one in the article doesn't make sense.
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I tought it was already established to be about Old Gods due to the end of Tombs of Terror
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This is really cool but I don't want to see flamewaker and secret paladin back in standard
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No Renolock? I'm disappointed. It's doing really well for me around rank 3.