GMMichael
Guide of Modos
Not that worried, Tieflings are banned ion my games along with Warforged, Kender, Drow, Dragonborn and the Monk.
+1. Except I allow Dragonborn:

and monks:

Not that worried, Tieflings are banned ion my games along with Warforged, Kender, Drow, Dragonborn and the Monk.
In my game I ban all classes and all races so its not a problem for me.