Could not much be done by granting higher power Battlemaster manoeuvres? Specify a Proficiency Bonus requirement of +4 or higher.
Again the point is that there are multiple ways to do a high level fighter.
So there should be multiple prestige classes and epic destinies
- Action Star
- Bonus damage
- Bonus uses of Action Surge and Second Wind
- Demigod
- Bonuses to STR DEX and CON
- Can go over 26 STR DEX and CON
- Extra use of Indomitable
- Iron Hero
- gets a magic weapon
- gets a magic armor
- gets bonus attunements
- gets a special mount
- Mastermind
- gets bonus Maneuvers and advanced Maneuvers
- gets Expertise in 2 skills
- gets bonus in INT WIS or CHA
- Legendary Lord
- gets a Stronghold
- gets followers
- grants bonuses to nearby allies
- Hellstorm Rocket Battery are core choice
- Sword Hero
- "Fightin' Magic"