Kampf and a 2027 third-round pick were acquired by the Sabres from the Capitals on Wednesday in exchange for Alex Tuch.
The Sabres will have a brief exclusive negotiating window with Kampf if they so desire. He is eligible for unrestricted free agency at the beginning of July. The 31-year-old had six points in 40 outings between the Canucks and Capitals in 2025-26. Kampf projects as a bottom-six forward at best, regardless of whether he signs with Buffalo or heads elsewhere.