The flank position is where King Marius III thrives, winning 50.6% of 397 games. King Marius III represents Italy with a 1590 rating in RM Team. In ranked random map team, King Marius III excels with Celts (61.2%) and on Black Forest (62.7%).

Having played 758 matches at 50.5% in RM Team, King Marius III most often selects Goths.