TheStarsAreRight:Sacrifices
1) My life
Advantage: If the value is proportional to the sacrifice, this should provide a lot of value.
Disadvantage: I'd be dead.
Want it back?: Yes
2) My knowledge of economics
Advantage: None.
Disadvantages: Most of my life would become meaningless
Would I even be me anymore?
Want it back?: Yes. Albeit, unclear how it would change
3) My left arm
Advantage: Wouldn't effect my brain at all
Disadvantages: Many tasks in life would become much more difficult
Would I even be able to dress myself anymore?
Want it back?: Probably. Could it come back as some horrible alien appendage?
4) My charming personality
Advantage: Who would miss it?
Disadvantage: The sacrifice would have no value
Want it back?: Meh
5) The ability to channel ponic energy
Advantage: I only know a couple of tricks, anyway
Disadvantages: I'd be almost completely helpless before "supernatural" enemies
An exciting avenue of learning would be closed to me
Want it back?: Maybe. Could come back as something that harms or changes me
6) My left eye
Advantage: I'd be just like Odin
Disadvantages: My depth perception would be shot
Reading and researching could become a painful task
Would look like a pirate
Want it back?: Probably. Could it come back as some horrible alien thing?
7) Memories of my childhood
Advantage: Probably wouldn't impact my ability to "save the world"
Disadvantage: Our memories make us who we are
Want it back?: No. If changed could alter who I am
8) My sex life
See "4"
9) The option to go back to a normal life
Advantage: Removing this option makes it more likely I will help "save the world"
Disadvantages: I lose my freedom
I'm more likely to die
Want it back?: Yes.