Ethnos
After playing an Elf-led band, can you keep leftover cards, and must you keep exactly as many as the band size?
The Elves section says the number kept is a maximum, not a required amount.
- Ethnos rulebook · Rulebook · Tribe of Elves
You may keep up to as many cards as the Elf-led band contains, so you can keep fewer and discard the rest. If you have fewer leftovers than that, you keep them all.