Siege of Valeria: Campaign

From BoardGameGeek:

The campaign expansion to Siege of Valeria introduces rules for a multi-game series that will test your skill at defeating the troops and siege engines arrayed against you. A powerful Boss and Elite Troops will join each battle under an enemy Commander while penalties and bonuses follow you from one game to the next. A Duke is there to assist you, but it is your own skills that will lead the campaign to glory. . .or to failure.  • Bosses - One Boss card is added to the Siege Engines deck and attacks you twice each round when it comes out. You need to defeat it twice before you remove it from the battle.  • Elite Troops - Four Elite Troop cards are added to the Troop deck and each one requires two specific die values to defeat.  • Commanders & Dukes - A Valeria Duke and a Monster-kin Commander are drawn at the start to give each side special benefits.  • Lose the Battle, Win the War - A campaign is three games, each worth more VP than the one before. You might lose one siege and still win the war. . .if you're skillful.