Career
He started his career in Germany playing for Fußball-Regionalliga Südwest club Freiburg World War II In his actually first professional season (2014-2015 season) with Pierikos, he worked very hard and his improvement is obvious. Mystakidis since his beginning in professional football, characterized as a talent with shoots, crosses and passes equally well with both feet. lieutenant can cover all three positions behind the forward is not predictable in his playing and has good finishes in both short and long distance.
Mystakidis scores his first goal for PAOK Football Club on an unofficial match against Football Club Dnipro Dnipropetrovsk.
On 16 July 2015 he made his debut with PAOK in an away loss game against Lokomotiva Zagreb for the second qualifying round of the Union of European Football Associations Europa League.