@AbdulAlhazred Perhaps going through the Battlemaster maneuvers and giving them a tier adjustment. would satisfy the 5e explicit urge and make them actually service the tiers better.Epic to me is about Scale
In 4e my fighter has an at-will power called knockdown assault it sounds pretty mundane at first glance and is not considered a power house you might even notice it only advances based on attributes of the fighter.
However you might notice a detail it also prones an enemy regardless of size so when you are fighting Gargantuan Dragons yes you can toss their scaled hiney it can be seen as a sophisticated move that uses the enemies strength and mass against them.
In comparison the 5e battlemasters move is forever small stuff with a realism target that makes them not epic in my opinion.
edit: I think 4e assumes the heroes awesome scales to as his foes do over his adventuring career and does not need one to take extra feats or explicit subclasses to achieve this.