When you think you got the power play but then you forget about blockade everytime even though you've seen all that Bane Shift a million times.
When you play Mena, thinking that you're gaining an advantage, then you remember how much he costs, and you lose the game.
When you have this possess-->chasm kill lined up with slavers whip but then you realize you put slavers whip on a champ with unstoppable
hmmm.....when you swap but fail to kill the opposing unit for any number of reason and just lost the game.