Hmm. Yeah, I'd say about half a dungeon. Maybe more or less, depending on the size of the dungeon.
I went ahead and made up a couple Elixirs for you, Remuthra. They're super basic, but they should give you an idea of how the system works and whats possible (Namely, anything). If you want me to put together anything else, just ask.
Lesser Strengthen Body: +3 energy, Lesser Control Magic +5
Altered Traits: Extra DX Without Basic Move +15 energy/lvl
Subject Weight: 300 lbs. +3 energy (Variable)
Duration: 10 Minutes +1 energy (Variable)
Lesser Strengthen Mind: +3 energy, Lesser Control Magic +5
Altered Traits: Extra IQ Without Will or Per +10 energy/lvl
Subject Weight: 300 lbs. +3 energy (Variable)
Duration: 10 Minutes +1 energy (Variable)
Lesser Strengthen Body: +3 energy, Lesser Control Magic +5
Altered Traits: Extra Fatigue Points +3 energy/lvl
Subject Weight: 300 lbs. +3 energy (Variable)
Duration: 10 Minutes +1 energy (Variable)
Greater Strengthen Body: +3 energy, Lesser Control Magic +5
Altered Traits: Altered Time Rate +100 energy/lvl
Subject Weight: 300 lbs. +3 energy (Variable)
Duration: 10 Minutes +1 energy (Variable)
That last one has a greater effects multiplier, which means that after you figure out it's energy costs, you triple them. Yes, that means it costs at least 336 Energy. There are ways to get a discount on that, of course.
Oh, and I didn't name them, I'll leave that up to you.