At the start of the Boss Turn, put one Boss Counter on this. Then, each player puts a Doubt on each Clash card they control with the highest attack. If they don't, Minions can’t be dealt non-clash damage until the start of the next Boss turn.
Whenever a Minion is defeated by non-clash damage each opposing Contender loses two health.
When the players advance, flip this.
Skull: Minions get Fortitude and "Trigger - Attack: This card assigns clash damage equal to its defense instead of its attack this clash”.