Heal Petrov Hurt Qf6
Hurt/Heal after 1.e4 e5 2.Nf3

Hurt Nf6, heal d5.
I don't think it's a great move, it's just called the Elephant Gambit, so I have to vote for it :D

Up to post 29 by me:
1st: 2...Nc6 Mainline 56 points
2nd: 2...Nf6 Petrov Defense 33 points
3rd: 2...d5 Elephant Gambit 32 points
4th: 2...d6 Philidor 32 points
5th: 2...Bd6 27 points
6th: 2...Bc5 27 points
7th: 2...f6 Damiano Defense 26 points
8th: 2...Qe7 21 points
9th: 2...Qf6 12 points
10th: 2...f5 Latvian Gambit 9 points

Up to post 39 by me:
1st: 2...Nc6 Mainline 61 points
2nd: 2...Nf6 Petrov Defense 37 points
3rd: 2...d6 Philidor 32 points
4th: 2...Bd6 27 points
5th: 2...Bc5 27 points
6th: 2...f6 Damiano Defense 25 points
7th: 2...d5 Elephant Gambit 21 points
8th: 2...Qe7 21 points
9th: 2...Qf6 12 points
10th: 2...f5 Latvian Gambit 3 points
The Elephant Gambit has been hurt a lot and the Latvian is almost dead!
heal Nc6 hurt f5