Leatherface should have a visual/audio cue when to use a token.
Either base-kit or as buff to an addon. Nurse already has the screen flash white when your blink window is about to expire. On my monitor I can hardly see the chainsaw meter running down in the lower left corner. Billy's chainsaw overheating is easy to see/hear with all the smoke and red-hot parts of his chainsaw.
Bubba already has a little "fuel droplet" sound when he gains a charge, and when he runs out of charges there's a metallic "Spring" noise. Can we get something like the chainsaw sputtering like it's running out of gas when you're on the last 15% of the meter?