[Spitty]

Invigorate.

Seriously, I'd get so much shit done if I never had to sleep.

I'd also make a serious killing by offering one-on-one restorative consultations for professional athletes and touring musicians, and then leveraging that into a branded energy drink.

That's right. Invigorate could save lives, win Super Bowls and make me filthy rich, and it's like 15 mana. Now that is some old-fashioned useful efficiency right there.