When a Defender’s Hit Point Token reaches the “0 space” on their Hero Card’s track, they are Exhausted. That Defender may not use to Secure, Fight, or Defend, but may still use
to Move and Use Abilities (as long as they do not Secure, Fight, or Defend).
If a Defender is in the Capital City at the start of their Turn (during a Defender or All Defenders Card) they are restored to full Hit Points. A Defender must spend at least 1 for it to be considered their Turn.