>killing shit in epic ways
>want to use a special attack to look even cooler
>press the buttons
>nothing happens
>it's because you don't have enough stamina
this will happen, and I don't want the player to be left wondering why the skill is not working. Do you think blinking the stamina bar and a sound will be enough? Or should I put some effect on the player as well? Like some sweat coming out of him or something like that. Thoughts?