This is meant for 2 people vs the AI. 
{Script,Raid on Dunmar,17} to try it out.
Code:
void configGame()
{
   setMapSeed(20);
   setNumPlayers(3);
   addAIPlayer("Evil Fish","Crypt Doctor",0);
}
void beforeStart()
{
   infoBox("Raid!","Can you destroy Castle Dunmar?");   
   Player aiPlayer=getAIPlayer(0); 
   createEntity("Foul Obelisk",4,10,aiPlayer);
   createEntity("Foul Obelisk",10,3,aiPlayer);
   createEntity("Foul Obelisk",5,6,aiPlayer);
   createEntity("Belfry of the Restless",6,7,aiPlayer);
   createEntity("Bloodling",7,10,aiPlayer);
   createEntity("Bloodling",5,9,aiPlayer);
   createEntity("Bloodling",9,10,aiPlayer);
   createEntity("Bloodling",8,5,aiPlayer);
   createEntity("Vampiric Manticore",8,4,aiPlayer);
   createEntity("Duchess of Dunmar",7,6,aiPlayer);
   createEntity("Castle Dunmar",6,6,aiPlayer);
   createEntity("Graveyard",6,5,aiPlayer);
   createEntity("Graveyard",7,5,aiPlayer);
   createEntity("Graveyard",7,6,aiPlayer);
   setTerrain(createLocation(5,5),1,1);
   createEntity("Ghost Ship",5,5,aiPlayer);
   int ds=aiPlayer.deckSize();
   for(int n=0; n<ds; n++)
   {
      aiPlayer.removeDeckCard(0);
   }
   aiPlayer.addToDeck("Lysis",0);
   aiPlayer.addToDeck("Lysis",0);
   aiPlayer.addToDeck("Lysis",0);
   aiPlayer.addToDeck("Lysis",0);
}