The entity embodies order and balance in the universe and is the opposing force to "brother" entity Lord Chaos. The pair are rarely seen, but appear to manipulate events to prompt Spider-Man to solicit the Thing to join the Avengers and Warlock in the first war against the Titan Thanos and defeat him.  Master Order and Lord Chaos were then seen observing King of the Norse Gods Odin and master villain Dormammu play a cosmic game of chess.  Master Order and Lord Chaos next conspired with other metaphysical and "omnipotent" beings against the Beyonder. Lord Chaos and Master Order were then summoned by the Silver Surfer to regain control over their servant the In-Betweener.  They imprisoned the In-Betweener for his transgressions.  Master Order and Lord Chaos also attend the funeral of Eon and speak with cosmic hero Quasar. 
Master Order and Lord Chaos participated in the congress of metaphysical and abstract beings to determine Thanos's fitness to wield the Infinity Gauntlet. They chose to join Adam Warlock and the other cosmic deities in a bid to stop Thanos.  With the other abstract beings, they battled Thanos,  and then battled Nebula when she obtained the Gauntlet from Thanos.  The congress of abstract beings then witnessed Adam Warlock's cosmic trial to determine his worthiness to wield the Infinity Gauntlet.  Lord Chaos and Master Order were next seen among a group of abstract beings questioning the Beyonder from the Dimension of Manifestations.