lol fail :( - (The Dumbest thing you've done in game)

[thekillergame]

Well I used to be pretty desperate for extra coins so I kinda sold my Death Nymph once 
Didn't consider it useful enough back then I guess...

Now having hundreds of upgrades and only four nymphs I would so love to get it back

i did that twice nut now i regret that aswell. 

[Fudoshin]

Sold my first nymph because I didn't think it was _that_ rare. I think I got one the first or second day I was playing this game. I've got 2 since then and it's been months.

[jippy99]

Ok so I was about to beat a AI5, but I looked at my hp and saw that I was going to lose on the next turn.  So, I quit.  As I was clicking the quit button, I realized that I was about to win on the same turn.  Also, I have clicked out of the browser after I have won cards before the game saves.

[7wavemaster]

Well I used to be pretty desperate for extra coins so I kinda sold my Death Nymph once 
Didn't consider it useful enough back then I guess...

Now having hundreds of upgrades and only four nymphs I would so love to get it back

Edit: the oracle has forgiven me and granted me a new one 

I have 7 of them and still cant find any use for them.