The 3e barbarian's rage class ability is essentially a per-encounter ability; albeit one with a daily cap as well, but it can only be used once per encounter, and after a certain level - or at first level with the Extra Rage feat - you can use it every combat encounter and probably never run out.moritheil said:I find it interesting that the only concern most people have is balance. Per day is plausible in the game world; per encounter is strange, to say the least, and is clearly derived from metagame concerns.
I don't see much distinction between needing sleep to "recharge" abilities and needing to rest for a few minutes to do the same. So I don't agree that per-encounter is any less metagame-y than per-day.