Hearthpwn

Blizzard has confirmed that they do look at custom cards, although I think in many of the cases of similar reveals it's just the players and the company having the same thought process. My two cards matched almost exactly, but one came too close to KoFT for it to be implemented and the other I didn't even publish.

Got another one I didn't realize before. It's all correct except the mana cost.

Snowfury Giant

I made this for a Custom Class, the exact effect, cost and text of Devolve.

Also the main theme of the same class, predicting the Grimy Goons, though I greatly understimated the effect.

Could be said as a more expensive version of Living Mana, though EVEN more risky.

Venomstrike Trap with a small twist. Obliterate but as a class card for Warlock and Lunar Visions but with spells.

My card is even cuter than Snowflipper Penguin!

Just thought I'd revive this thread because the new warrior weapon Bladed Gauntlet is practically identical to a card I made a while ago.

The Paladin Legendary in this set

And

Lynessa Sunsorrow

I literally made this hours before they released Kobold Monk

Quote from alexbroxman >>

I literally made this hours before they released Kobold Monk

Additionally, from Invasion of the Void:

The wording is different as Underworld Cerberus's effect is also intended to work during your opponent's turn. Basically Foe Reaper that also works whenever it's attacked, not just when it attacks. For some reason, we all think of Hunter when we make this effect even when Hunter had no cards like this before.

The OG 7 mana 1/1.

Shifting Scroll is also identical to a card idea I've had for quite a while, except it was Epic instead of Common, costed 1 and could transform into any spell, not just Mage spells.

Here are mine, between a spoiler because there are a lot of them (none are exact maches though):

In addition to those:

• I planned to make a card very similar to The Darkness as the final boss card for an adventure (I only create the cards for an adventure/expansion once everything is written down), except the pieces would have been shuffled into your deck and not the opponent's, but now I have to change it.
• I made some Rogue secrets too, but mine cost (0) which tbh makes more sense for rogue...