Fire Emblem Heroes Friend IDs and Tips

[pbroy]

TomaTito said:

http://nintendoeverything.com/fire-emblem-heroes-voting-gauntlet-event-new-maps-summoning-focuses-arena-bonus-heroes/

What is this voting thing? You use your team leader?? Which one is that... the first one?
Old one, but which team is used in the arena... the first one?

So many questions

I was wondering about the team leader and arena team a while back ago too. Then one day I noticed that the person at the top of the castle changes when you change the first person on the first team. That's when I figured that's the team leader and probably the team that goes in the arena.