I found the card, yes it was called
Taking the High Ground For each
character you exert when playing this, its twilight cost is -1) Archery: Discard an
character from hand to make the fellowship archery total +1. Each time the fellowship moves from an underground site, return your Elf to your hand.
I assume you can discard more then one character per archery phase if you would like to have even more archery?
The 2nd part confuses me tho. Assuming I do move from an underground site what elf do I return to my hand? Any elf I may have on the table in play or one that I discarded from my hand to help bring up the archery total?