Spoilers: Character background and relationships; no campaign ending.

The brothers descended from Aenarion
Tyrion and Teclis belong to an ancient High Elf family descended from Aenarion, the first Phoenix King. Their fame reaches beyond Ulthuan, but their gifts take different forms: Tyrion is renowned as a warrior, while Teclis is an exceptional mage.
Their shared ancestry is central to their background. Teclis’s physical frailty accompanies formidable magical ability; Tyrion’s strength and skill make him a celebrated defender. The brothers’ contrast explains why they offer such different figures of leadership.
Finubar and the Everqueen
Tyrion’s renown invites speculation about a future claim to the Phoenix Crown. His established loyalty is to Phoenix King Finubar. The duties that occupy him are the defence of Ulthuan and the protection of its Everqueen, Alarielle.
Alarielle is also his consort, making that responsibility personal as well as political. Tyrion’s standing comes from the trust placed in him as a defender and champion.
Tyrion in Immortal Empires
In Immortal Empires, Tyrion leads Eataine and fights as a melee Legendary Lord. His campaign puts that identity into the player’s hands through command, diplomacy and war alongside the other High Elf factions.
Teclis and Alarielle have their own selectable campaigns and content requirements. Their family and personal relationships establish the background; the alliances, conquests and survival of each faction depend on the campaign you play.
The twins' novels, and a later regency
Blood of Aenarion is book 1 of William King's Tyrion and Teclis. The twins are taken from the wilds of Chrace to Lothern once Malekith learns they exist. Tyrion is the swordsman and tactician, Champion of the Everqueen. Teclis is the sorcerer, and the jacket says he taught magic to men. The 2017 roster calls Tyrion the greatest living warrior and repeats the bardic claim that he is Aenarion reborn. His loyalty on this page stays with Finubar.
Sword of Caledor sends the twins into Lustria after Sunfang. Bane of Malekith puts Tyrion and the Everqueen on the run in Avelorn, then on Finuval Plain against a host the jacket says Malekith leads. The Curse of Khaine is a separate End Times book. It calls Tyrion Regent of Ulthuan while Malekith leaves the Land of Chill. Eataine opens on the champion. An Immortal Empires alliance is a campaign choice.
Tyrion: gameplay and availability · More character stories
Sources
- High Elf army roster — totalwar.com
- Blood of Aenarion — blacklibrary.com
- Sword of Caledor — blacklibrary.com
- Bane of Malekith — blacklibrary.com
- The Curse of Khaine — blacklibrary.com
- Immortal Empires DLC Ownership Guide — SEGA — support.sega.com