Here is a possible quest nexus that could be available to all kingdoms. Basically, numerous quests would be persistently available at "Talon Mount." Some would grant reputation gains with Abraxxis the dragon with which you could purchase goodies from his horde and also sometimes one time rewards. When you arrive at Talon Mount, a brief story box might appear...
Abraxxis Bloodtalon presides atop the Talon Mount overlooking the Snarling Rambles, contemptious of the meagre and paltry kingdoms of mortals beneath his gaze. He might view them more enthusiastically as food items, were they not so scrawny or their bones didn't stick so sorely in his teeth. The sovereigns that have risen after the Rending of the World have impressed Abraxxis little, and those that would be so bold to confront so should do so with the utmost caution...
To start, if you send any delegates to the Dragon's lair, he will promptly kill them. The lair of Abraxxis begins with no formal quests or dialogue from the dragon himself, but instead has a table of broad "missions" that allow the player to raise their reputation and respect with the beast and his entourage. They might include:
1. Defeat a number of dungeons who's combined value = X. Gain +5 reputation with Blood Talon Mount.
2. Fight a war with a player and inflict at least Y losses on them. Gain +5 reputation with Blood Talon Mount.
3. Give tribute to Abraxxis equalling at least Z gold. Gain +5 reputation with Blood Talon Mount.
4. Give tribute to Abraxxis equalling at least W food. Gain +5 reputation with Blood Talon Mount.
Once you gain at least 20 reputation, new options appear (with the old options to gain rep still existing, but being scaled up significantly.) When you send delegates to Abraxxis, there is only a small chance that he'll decide to eat/kill your men. New missions might include:
5. Give Abraxxis X citizens to become his followers, servants, and Dragon Desciples. Gain +5 reputation. Once Abraxxis gains servants and followers, they create pastures of dragon delicacies to feed their master as well as start a mini-empire in the shadow of Talon Mount. Every nation that wishes to curry Abraxxis's favor can give him followers, whom add to his pool. Player's can also attack followers and loot resources exploited by them, but run the risk of calling down the Dragon's wrath. Sovereign: "Great Dragon Lord, take these men and women under your mighty scaled wing, so that they may serve you and come to know but a fraction of your prowess."
Once you gain 30 reputation, Abraxxis will accept audiences with your emissaries, engage in dialogue, and give you formal quests. You can also buy low level goodies from his horde from mana, to gear, to shed scales. Such items would be available to all other elligible factions, but are limited commodities. If you decide to put off purchasing the Spellsong Glaive, it may end up in the hands of rivals. Quests might include:
6.. Hunt the White Stags of Lordemar Wood and give 10 tons of meat to Abraxxis. You may keep the pelts. Gain +5 reputation. Abraxxis: "Feeble human, you taunt my palate with your presence. If you do not wish to know the impatience of my appetite, I suggest you find some other means to satisfy it. The White Stags of Lordemar Wood grow fat during their spring graze..."
7. Bring Abraxxis an elligible female dragon. Gain +20 repuation and the first born wyrmling of Abraxxis. This quest is very difficult, but succeeding at it, of course, grants other players with access to wyrmlings. It can be achieved numerous times, increasing the rate at which wyrmlings are born. The player that succeeded in the quest may purchase them at a discount. Abraxxis: "It has been many years since I have consumated my lusts. Find me a female, and I will see that you are rewarded."
Once you've gained 50 reputation with Abraxxis, you gain access to an even higher grade of loot from is horde, like magic items and shed talons/teeth. You can also recruit Dragon Disciple units from his pool of followers. You may also make minor treaties with Talon Mount as though it were another kingdom. New quests open up as he comes to trust you.
8. Declare war on a kingdom that has foolishly cought Abraxxis's displeasure and inflict damage. Gain reputation based on that damage as well as gold. If a Kingdom has offended Abraxxis by killing his followers or stealing from his treasure, he can call on you to make them regret their offenses. If you are the trouble maker, he may be calling such an attack on you by a different player.
9. Recover an important trinket or item from an old layer. If the layer has already been visited and item retrieved by another faction, barter for the item or capture it by force. Gain +5 reputation and a reward. Abraxxis: "I have left something valuable to me, in the far east. As far as I know, it may very well be lost but you have proven competent in the past. Retrieve it for me, and you will have my favor."
Once you gain 70 reputation with Abraxxis, you have full access to his horde, for purchasing. You can recruit the best of his dragon desciple units. You may also pay him to engage in 1 time raids against your enemy's cities (he will refuse if the city is too mighty.) If his enemies decide to wage war upon you, he may also join you for the duration of the war, returning to his horde on Talon Mount after the war is over. He trusts you with his most meaningful tasks:
10. Travel to a distant land and visit the brother of Abraxxis. Convince him to cease his kinship feud. Gain +20 reputation. Abraxxis: "Yes, it is true, there are yet kin of mine that have survived the Rending of the World. But had there been no such Rending, it is likely there would still be few of my brood amongst the living for, you see, a young dragon will often see in their kin a bitter rival before a close friend. The two of us quarrelled terribly in our first 100 years of life, and we would weather the Rending harboring great hatred in our hearts. But you have taught me many things human, one such being the virtues of cooperation. What I will ask of you is of great importance. I would do it myself, but I fear such an encounter would demand either my, or his, death. Speak with my brother, Mezon, and convince him to abandon this feud."
11. Travel with Abraxxis to kill his arch rival. Gain +20 reputation. In this scenario, Abraxxis is likely weaker than his rival, and requires the aid of your military.
Once you gain 100 reputation with Abraxxis, you can request that he join you.
