I would make a quest event that spawned his goodiehut after turn X.

Edit: Wait, isn't that the master quest guy? I think he spawns on every map if you have master quest victory condition enabled?

OK - I don't want this to be a random event but a standard event for all my games, so I tried to make a new quest in the CoreGameEvents file looking like this:

<QuestDef InternalName="Quest_Sarog">
<DisplayName>Sarog the Dragonlord</DisplayName>
<Description>The tales of your adventure have attracted one of the ancient Dragonlords to the land.</Description>
<QuestClass>Minor</QuestClass>
<Repeatable>0</Repeatable>
<TriggerType>FactionResourceLevel</TriggerType>
<TriggerStringData>Fame</TriggerStringData>
<TriggerData>5</TriggerData>
<SpawnRating>20</SpawnRating>
<DoNotDisplayStartPopup>1</DoNotDisplayStartPopup>
<Treasure>
<GameModifier>
<ModType>Map</ModType>
<Attribute>SpawnMonster</Attribute>
<Value>1</Value>
<Unitclass>Sarog</Unitclass>
<Radius>24</Radius>
</GameModifier>
</Treasure>
<QuestObjectiveDef>
<ObjectiveID>0</ObjectiveID>
<QuestEnd>1</QuestEnd>
</QuestObjectiveDef>
</QuestDef>

...and it did not work.

Any idea what is wrong with this code?

Many thanks, Bendiwolf

So will this make Sarog standard, Primal?

I will investigate this further when I have the time to play a new map as to see whether there may be issues with the Temple of the Dragon and 2 Sarogs.