Sigil and the doorway to nowhere
Harrahld was born and grew up in Sigil, the child of two retired mercenaries. Before his eighth birthday he started showing signs of psionic power and started devoting his free time to training his latent abilities as well as his martial power, blending the two together and starting his own career as a sword for hire just after his 16th birthday. He joined one of the many mercenary units on the citadel, and rapidly rose through the ranks to until he became the second in command, a position which he held until the current unpleasantness. During his stint as a sellsword, Harrahld gained a reputation for success through any means possible.