public virtual IAgentUpdateInfo AddAgent(IAgent agent, int level, IPlayer owner) {
var deck = this.Players[owner];
agent.Initialise(deck);
var firstNode = this.Nodes.First.Value;
var ret = new AgentUpdateInfo(agent) {
Action = AgentAction.None,
Id = Guid.NewGuid(),
Level = level,
Owner = owner,
Stack = 27
};
this.Agents.Add(agent, ret);
return ret;
}