[ericbsmith]

I'm liking where this discussion is going. I'm seriously thinking about rewriting the Grace, Might, and Vigor spells to be in line with these rewrites. Perhaps drop Duration to 10 seconds for Grace, 20 seconds for Might and Vigor and have casting cost be 4 for level 1 and 8 for level 2 for all three spells?

Grace gives +3 DX for 4 energy, +7 DX for 8 energy, duration 10 sec.
Might gives +3 ST for 4 energy, +7 ST for 8 energy, duration 10 sec.
Vigor gives +3 HT for 4 energy, +7 HT for 8 energy, duration 10 sec.

All the effects as per shadedmagus' last post, meaning that Grace no longer gives a Basic Speed/Move bonus. This is a distinct change from the spell, but puts it better in line with the Heroic Feats advantages.

EDIT: On reconsideration I changed the effects of the Grace spell to exactly match Heroic Grace and changed the duration of all spells to be 10 sec. It actually simplifies things greatly if all the effects are exactly the same between the advantage and the spell. This is represented in the current text above.