Hearthpwn

I tried to cast Cenarius but instead played the Savage Combatant next to it.

I silenced a Darnassus Aspirant. Don't ask me why... I just... I just don't know. 

Rogue is the worst for this, especially when you have to kill a minion with multiple sources of damage.

Need 5 damage? Fan of Knives > SI:7 > Backst...er...fuck.

I know I've done similar but less dramatically stupid things with Boom Bots more than once.

Quote from Falcon55 >>

Back when you could view cardbacks from settings in game, I meant to view them while I was streaming, but accidentally conceded.

7 Mana? Let's play Summoning Stone and then freeze the board with Frost No- on second thought conceding seems fine, too.

Was playing demon handlock, played my ancient watcher, taunted it up and then silenced it. Yeah, I still won

Used a Flash Heal on my opponent who was at 5 health...forgot he had killed my Auchenai Soulpriest the previous round.

Any time I want to do something awesome, and then realise when I'm already playing cards I don't have enough mana. That happens a lot, actually.

I just had one... Had a crazy game with a Priest, I was a Zoo-Warlock. Bad matchup for me... He kept clearing the board and I kept coming back. I had brann on the board for 4 or 5 turns, he couldn't get rid of that guy by wisely Entombing my 17/11 Void and Giant.. I finally put in the dagger with a full board, Loathab x2 (Brann combo). I had 3 hp, decided to draw to see if I got a PO to finish him off. The problem is I only had 1 card left (which wasn't PO), drawing me into fatigue. I drew into death on the next turn. So stupid.

I've played Wild Pyromancer thinking it was Doomsayer....and visa versa...too many times to count.

Playing The Coin on 10 Mana after planning out my whole turn, completely ruining it.

I triggered Freezing Trap of a opposing Hunter and THEN I KILLED HIS MAD SCIENTIST resulting in another secret draw.

Quote from Frostoise >>

I triggered Freezing Trap of a opposing Hunter and THEN I KILLED HIS MAD SCIENTIST resulting in another secret draw.

Playing on a tablet and chatting with a friend on the in game chat. I then closed the chat box and clicked on the end term button without playing anything. I could of killed a taunt minion and won a turn quicker.

Sometimes I use targeting spells on my own minions, by some fucked up thought process.

The most hilarious instance of this occasion was in arena where I managed to naturalise my freshly innervated ironbark protector. Even more hilarious was that I still managed to win that game.

i got so pissed at a player i left for a min to get food.. lol thats about as salty as i get

Quote from flycheese >>

Playing on a tablet and chatting with a friend on the in game chat. I then closed the chat box and clicked on the end term button without playing anything. I could of killed a taunt minion and won a turn quicker.

lately in arena... played shaman:

Opponent is at 13 health with a mukla's champion that has triggered for 2 turns, im on less then 10 health and he has lethal on board... I draw fireelemental and first thing that comes to mind was destroying his champion... then i count his attack and its less then 10. so I think its safe hitting his face to bring him down to 3 :( next turn he direct damages me for lethal!

I had a Blackwing corruptor at my hand, which gave lethal, but no dragons to trigger it. However I had a dream card from Ysera (return a minion to owner's hand) and a dragon on table. So in case I would return the dragon from table to my hand (after hitting face) I could won. I realized that only after spending mana on other "smart move" and clicking "end turn". Next turn my opponent won the game.