Hearthpwn

My biggest fail ever was playing jaraxxus from golden monkey while i had about 40 armor an guaranteed win. Died to fatigue just one turn before my opponent. 

Anyway, this is not mine mistake but probably the best one i've ever seen(6m44s):

https://www.youtube.com/watch?v=9EySofnvCbI#t=6m44s

I was playing malygos shaman. I played Malygos, and with emperor discount I had enough spells to finish him off, I thought. I played all my spells and got my opponent down to 2hp. I then play totem, and rolls spell totem...... I lost that game.

Even though it happened a long time ago, I'm still having nightmares of that misplay. 

I played against a Rouge who had Daring Reporter and another minion. I had four Silver Recruits, played Cult Master, and traded into the other minion. Needless to say the Daring Reporter snowballed me too hard :D

Dragons, Elementals. The awkward silence when you drop a dead operative or a dead blazecaller. Turn 1 whelp without a dragon in hand.

Discovered Majordomo after i played amara. Opponent just dirty rat+equality.....

Oponent plays Antonidas, I think "damn, gotta kill that" use kill command and bow on it. Then realize he had no secrets and I had lethal... Lost the game

Classic: 

'Got to clear the board'

Plays Equality. Plays Wild Pyromancer.

Click end turn, wonder why the opposing board still stares at me.

I had the mage quest combo with antonidas and apprentices and for bm casted my spells and there was a volcanic potion. Guess i earned that...

I once got King Krush out of Forbidden Shaping and didn't attack. 

My worst missplay  was when i was playing handlock.I had a wounded mountain giant on board and i played a free molten giant with the intention of shadowflaming it.Then seconds later i thought that i should shadowflame the wounded giant and keep the healthy one...However the giant had 1 attack(because of aldor).When i realised my play half a second later,i told my opponent well played and conceded gracefully.

@Thought, ouch.... That's a rough one!

Every single play

-me playing reno decks

Quote from Thought >>

I want this topic be pinned. It's so fun to read.

Quote from Stiff_Muffins >>

Every single play

-me playing reno decks

Played arhcmage antonidas before playing my sorcerers apprentice for exodia...

i just Cold Blooded Alextraza instead of Eviscerateing her, tho it didnt matter cuz my opponent had a Pyroblast

Quote from Entro9 >>

Played arhcmage antonidas before playing my sorcerers apprentice for exodia...

I accidentally crafted a golden Raza. He looks cooler than I expected and I get a fair amount of use out of him, but at the time I was counting on that extra 1600 to make another legi I needed from the set so it was really upsetting.

I misplayed by queueing into a game thinking my decisions had any affect on the outcome of the game.  Silly me. 

I played miracle rogue once, and I had a insane hand.

I was going to make a HUGE edwin, the first thing I do, is that I slam down the edwin... Suddenly I realize that edwin and Questing Adventurer are not the same card. 

DERP.

Couldn't pick mage in arena

i played a deck without sneed's old shredder in it once