Before this battle's resolution: You may set aside a Fate card face-down from your hand. If you did, the enemy leader may also do so. Repeat the last two effects until one of you does not set aside a card, then turn the cards face-up. Add their total Focus Values to your respective armies' Force totals, even if the army contains no units, then discard them.
Battle:
If there are no Terrains at the current battlefield and you are the Attacker or Defender: Put this card into play there.