I'm not suggesting that it's bad to come up with new ideas. My point was more that there are a lot of normal 5e things that aren't implemented yet (but should be) that might cover some of the things that you're talking about. The two examples you gave both relied on spellcasters - if you want to find a way to make melee fighters more interesting on their own, it shouldn't involve spells.
I would be looking for more opportunities to give melee fighters to work together without the need for any spells. Make an interesting flanking rule. Start putting the help action to use. Let one character trip an enemy while the other shoves them over. Put grappling into the game. Let your musclebound fighter throw your halfling rogue up to that catwalk that neither of them would be able to reach on their own.
See funny you should mention that. I gave an example of two fighters in another topic before I made this one lol. The thing is I think its more likely that teams will be mixed. Its not impossible to have two fighters, but I wanted to put the mostly likely scenario's first. Another thing is i'm not sure how much of my own ideas I should put out there. I can make a long list of abilites for every class and subclass. In fact I would enjoy that, but in my experience Dev's can be picky. Sometimes the artist, writer, director, etc want to feel like "they did it". I gave as general a suggestion as possible to leave room to build on. Not all dev's are like that though. Some want full details. A flip of the coin really.
