Horwath
Legend
I've been playing Pillars of Eternity (Computer RPG based off the old Baldur's Gate classic) recently. Although its roots are in 2nd Edition D&D, PoE is its own thing and they branched out with their own lore and their own mechanics. While similar to classic D&D, they are very different.
One of the recent threads here on resources got me thinking about class mechanics in D&D, and since I'm playing PoE I immediately started to compare it. Unless I'm mistaken (and please correct me if I'm wrong), but there aren't any D&D classes that build up their resources over the course of an encounter is there? All D&D classes start the day with all their resources, and slowly dwindle down as they use them, with only Short Rests able to give them a little bit of a pick up.
I'm going to use the Battlemaster as an example. What if they started the day with 0 Superiority Dice, but gained them (to a max of 4) every time they hit an enemy, and then lost all remaining Superiority Dice at the end of combat? Would something like that be viable in the D&D world?
Right now every D&D class is set up to potentially unload the very first round, but grow weaker the longer the fight goes on. From what I've read people report and from my own experience, most combat encounters only last about 3-4 rounds. It would be interesting to see a class that was more potent in Round 3 or 4 than Round 1 or 2.
But that is how human body(or and other organism works).
You start fresh after sleeping and eating, and as the day goes you burn energy. Especially in battle. You would need some "magic" measure so you could drain energy from others.
I.E. vampiric touch spell. But even that drains your magic energy to gain life energy. It's hard to gain energy that is now coming from ones own metabolic system.
If you want to say "magic" go ahead, might be cool. But for some mundane fighter to gain energy by expending energy to attack? No way!.
Maybe what you are looking is variant of combo points or combo hits, like;
after you hit with both weapons while dual wielding you could rend for additional damage,
or if you hit 2 times in a turn with and axe you could try a trip maneuver with the hook of the axe head for free.