Legion Questions

I just finished researching Legions and I have a few questions. From what I seen so far, assigning champions to their formation spots based on their preferences and faction gives you a lot of strong buffs for each branch, I’m pretty early in the game and I only managed to gather +30% -ish buffs for Infantry, Cavalry and Archery.

Questions:

  • Do the level of champions in the legion affect the buffs they give?
  • Do the other champions in the legion fight during combat or the leader of the legion does all the fighting? Like maybe when the legion leader is down, one champion will replace them.
  • Is there anything more to Legions that I need to know? I heard you can “intercept” other marching legions…?

Thank you to anyone who answers. Have a nice day.