Wikstrom's Probopass was one of the challenges in the first area of The Castle of Chivalry. Probopass is a dear companion of
Wikstrom who puts out a strong magnetic field and it challenges the strength of those training to be able to run past its magnetic field while wearing suit of armor.
Wikstrom was impressed with
Ash Ketchum and
Goh as they revealed they each had a strong body and heart to get by Probopass.