Tony Vargas
Legend
Can you give me like an actual/concrete example of an ability, I get the broad categories you want to improve.
multiple Reactions (per Extra Attack) for use with OAs & feats that use 'em
When a fighter who has the Extra Attack Feature uses his Reaction to make an Attack or use a maneuver or feat that requires a weapon or shield, his Reaction is not expended. This feature can be used as many time in one round as the fighter has Extra attacks.
The intent here is that if the fighter uses his Reaction for something else - an EK casting Shield, for instance - it's gone, even if he's only used the one. The net effect is a 5th level fighter should be able to take 2 OAs or use both OA and Protection Style in the same round.
In 5e style, it's left to the DM to rule if the fighter might take two reactions in response to one trigger.
NWPs first appeared late in 1e, but they weren't very good, and they were optional in 2e. Feats, IDK if there was something at all like them in 2e C&T, but I think of them as a 3e innovation. There were always some very limited combat options that might be called maneuvers, like "this weapon can be set to receive an opponent's charge" as a footnote in the 1e weapon table.Also, correct me if I'm wrong, but it wasn't until 2e that anything resembling skills/feats/maneuvers as we know them today appeared.
So, I'd say skills/feats began in 3e, maneuvers in the sense BMs have 'em, today, starting in 4e as 'exploits.'