Meta-maneuvers
1)
Scan for Openings - perceptiveness and predictiveness and trades on extra attacks - gain attribute bonus on superiority die.
2)
Straining represents extreme physicality involves trading in hit points - trades on your durability
3)
Risking - courage, another trading on fighter defense
3a) gives advantage to enemy or enemies (for a bigger effect)
3b) opportunities for them to attack you
The following is just an initial thought its a bit like a mirror of part of number 3 instead of conferring advantage to your adversary you drop advantage... ie you Risk Failure instead of injury when you currently have nigh certainty.
4)
Advantageous Exploit
When you would have advantage on the attack roll, you can forgo that advantage to exploit the foe’s distraction/bad position to apply a maneuver to your subsequent attack against that enemy as though you had a combat superiority die.
(A subclass perhaps called Rogue might have a special ability to gain advantage or skip to gaining a superiority die to target an enemy that is simultaneously engaged by more than one)
@Tony Vargas -
Edit advantage is currently feeling too cheap I think perhaps for accomplishing anything but a very raw attacks combined in one stroke kind of maneuver. So 3b and 4 are kind of meh no lets not