Spoilers: Game dragons. Sword of Caledor is the twins' book, not his.

Dragon encounters and Minaithnir
Imrik is High Elf Free-LC. The February 2023 FAQ names the route in his own example: Warhammer II, or The Warden and the Paunch. The Queen and the Crone and Aislinn's pack are the other High Elf ownership lines on his play page. Knights of Caledor lead him to unusual dragons and the chance to win their allegiance.
Minaithnir is his dragon. The mount reaches exposed targets and draws missiles and anti-large troops. Spearmen and Lothern Sea Guard keep the ground formation when he leaves it. A dragon battle is a campaign event. The rest of the map does not pause for it.
Caledor the name, and Caledor the book
Sword of Caledor is book 2 of Tyrion and Teclis. Tyrion and Teclis go into Lustria after Sunfang, the lost sword of Caledor Dragontamer. Malekith and N'Kari enter that novel. Imrik does not.
The Sundering omnibus ends on a book called Caledor, and the jacket calls that figure a reluctant leader, the elf who can hold Ulthuan, a Phoenix King beside the Witch King and the Shadow King. That is not the playable dragon prince. His campaign name, Knights of Caledor, points at the same ancestral line. The dragon encounters are the game's use of it.
A dedication, not a biography
Aislinn can hand conquered settlements to Imrik and take gifts in return. The 11 November 2025 introduction lists Imrik with Tyrion, Teclis, Alarielle, Alith Anar, and Eltharion. That is a Sea Patrol mechanic. It does not move the Knights of Caledor off their own start.
The dedication is a Sea Patrol gift. The dragon encounters stay with the Knights of Caledor. Sword of Caledor remains the twins' search for Sunfang.
Imrik: gameplay and availability · More character stories
Sources
- Immortal Empires FAQ, February 2023 — totalwar.com
- Sword of Caledor — blacklibrary.com
- The Sundering — blacklibrary.com
- High Elf Free-LC access — Creative Assembly — community.creative-assembly.com