Severin possesses the lean, athletic build of a fencer combined with the intense, observant gaze of a scholar. His silver hair is pulled back into a tight warrior's queue, and he wears midnight-blue studded leather that allows for silent movement. Runes are etched into his scimitar's blade, glowing with a soft white light when his Bladesong begins.

Severin is a man of few words who believes that movement is the ultimate expression of magic. He is disciplined and cold in combat but shows a surprising dry wit when relaxing in the company of trusted allies. He despises bullies and uses his criminal training to undermine corrupt authorities.

Born in the secluded elven enclave of Silverymoon, Severin was trained in the ancient art of the Bladesinger. However, his rebellious streak led him to use these sacred techniques for less than holy purposes. He spent decades as a master thief, stealing artifacts from the vaults of tyrants and distributing them to the downtrodden. This life of crime eventually led to the betrayal of his former guild, an event that nearly cost him his life. Severin was the sole survivor of an ambush that wiped out his unit. He spent years in hiding, refining his magic to incorporate the hard-learned lessons of the streets. He now lives as a wandering swordmage, seeking to redeem his past by acting as a shield for the weak, though he still retains the instincts of a predator and the stealth of a ghost. To the common folk, he is a mythic protector. To the underworld, he is the ghost they failed to kill.