Paul Farquhar
Legend
Temporary hp don't stack.
Temporary hp don't stack.
Well, a fighter gets Second Wind to head for d10+Class level once per short rest, so let's say 3d10+3xclass level for a full day.
At 6th you have four rages, so if each of those is used in a four-round encounter with a Con of 18, that's up to 64 temp HP a day, though it will prevent up to 128 HPs of damage if the incoming damage is of a type you resist but realistically that will only be some of it. At 6th the Fighter would be getting 16.5+18=34.5, so it's roughly 2-3 times as good as Second Wind, more if combats last longer or if you get hit with P/B/S damage more than the average.
Second Wind continues to increase with Fighter level (so daily usage by ~3 HP per level). This will jump up 25% when Con gets to 20, and also jump up with every additional rage. A 17th level fighter would second wind three times for a total of 67.5, while a 17th level barb would be 6 rages times 4 rounds times 5 tHP for 120 tHP, which is again magnified by resistances.
This seems quite viable and much more than Second Wind, I think any attempt to increase it significantly would make the character completely out of line with what other melee characters can take.
Uh, second wind is just 1d10 plus level, the d10 doesn't add up.Well, a fighter gets Second Wind to head for d10+Class level once per short rest, so let's say 3d10+3xclass level for a full day.
If you have have two short rest you can use Second Wind up to three times that day. At d10+level each time, that totals 3d10 + 3*level as your possible for an average day (assuming the DMG recommended two short rests).
I convert everything into daily so that I have an apples-to-apples way to compare a 1/short rest feature and a 4/long rest that lasts for an entire combat feature.
Make sense now? It's not saying the Second Wind gets more d10s for a single use, just a total of what happens with multiple uses over an adventuring day.