Slugger

is a Rank B Merican Yo-kai of the Brave tribe.

Damajor Nine evolves by leveling Damajor.

The Yo-kai Meddallium bio reads; ''Damajor has finally achieved his dream of becoming a baseball player for the Yo-League by undergoing intense training! He's as skilled as an entire nine-man baseball team!''

Name Origin
there are nine members of a baseball team, and nine is generally referred to as a special number in baseball.