Does Constitution Regen Stack?

JitterBug

Constitution HP/Level bonus (Non-Warrior) HP/Level bonus (Warrior) HPregen/Turn
3 -1 -1 0
4 -1 -1 0
5 -1 -1 0
6 -1 -1 0
7 0 0 0
8 0 0 0
9 0 0 0
10 0 0 0
11 0 0 0
12 0 0 0
13 0 0 0
14 0 0 0
15 +1 +1 0
16 +2 +2 0
17 +2 +3 0
18 +2 +4 0
19 +2 +5 0
20 +2 +5 1
21 +2 +6 2
22 +2 +6 3
23 +2 +6 4
24 +2 +7 5
25 +2 +7 6

There are items that say they add regen over time for instance "Ring of Regeneration" (wearer regenerates 1 hp every 6 seconds. Thats 1 hp every round, at 24 constitution you get 5hp regen a turn wich is 10 rounds. So the Beneficial regen of 24 constitution is only half that of the ring of regeneration. Combined they would give you 3 hp regeneration per 2 rounds in theory.

FinneousPJ

No. At 25 you regen 6 HP / turn. It does not stack.

elminster

Nah it doesn't stack. When it comes to the constitution regeneration apart from having a use for healing from travelling between areas it really isn't all that useful.

FinneousPJ

JitterBug said:

There are items that say they add regen over time for instance "Ring of Regeneration" (wearer regenerates 1 hp every 6 seconds. Thats 1 hp every round, at 24 constitution you get 5hp regen a turn wich is 10 rounds. So the Beneficial regen of 24 constitution is only half that of the ring of regeneration. Combined they would give you 3 hp regeneration per 2 rounds in theory.

Re your ninja edit: CON regen should stack with the ring, yes.

Tresset

Perhaps the correct answer is not yet...

TJ_Hooker

I think multiple sources of regen do stack, but only if they have the same rate. So by and large CON regeneration won't stack with other regen sources, but only because most items provide different (faster) regen than CON does. Although 21 CON should stack with Pearly White Ioun Stone for 4 HP/turn regeneration.

Edit: this may not be correct after all, at least not entirely.

Elrandir

What takes precedence? The stronger regen or the CON based regen?

TJ_Hooker

Stonger regen should always take precedence, AFAIK.

JitterBug

Thats unfortunate.

SFJake

Hum, much misinformation here or did the EE versions change this?

I've toyed with generation far too much to not know. Every source of regeneration is totally independent and as such they work with each other. They are also not always synchronized, which can make this more obvious.

Regeneration also comes at twice the speed under haste.

CrevsDaak

Elrandir said:

What takes precedence? The stronger regen or the CON based regen?

The itm/spl/eff given Regeneration, and that regeneration stacks (so, yeah, two Rings of Regen will work together).
Edit: not only the strongest or similar non-CON-Regen effects stack, all of them do (unless this was changed in the EE).

Gotural

Why wouldn't it stack anyway ? You have a high Con you regen, you wear the Ring of Gaxx you regen more, you drink a Potion of Regeneration you regen even more. The same way having a weapon +3 and 19 Str (+7) gives you +10 damage.

CrevsDaak

@Gotural‌ it's how the engine handles CON regen, it isn't actually and effect like the Ring of Regeneration, and it caused slowdowns (I say slowdowns but it caused crashes, save corruption etc too) if working alongside of poison and many other semi-permanent constantly-triggering effects (it's the same case of movement rate being affected by regen and Drow form).

TJ_Hooker

Just tested in out in vanilla BG2 (GOG version). I had a character with axe of unyielding +5 (3 HP/round) and ring of regeneration (1 HP/round). I turned on auto-pause at end of round. Some rounds I'm regenerating 3 HP, other rounds I'm regenerating 4 HP. I then repeated the test in BG2:EE and got the same results. I had done this same test (the BG2:EE test) prior to making my previous comment, but I guess I didn't wait long enough (just saw my character regenerate 3 HP/round).

I thought I had read something about only identical rates of regen stacking a while back, and I thought I had confirmed it with my initial test, but now I'm not really sure what's going on.

Edit: Just realized that during my BG2:EE test my character was wearing Wong Fei's Ioun Stone as well, so I would expect 5 HP/round regen. Yet I'm still getting a mix of 3 HP/round and 4 HP/round.

SethDavis

I think there may have been a change to this in the beta. There was some issue (#7364) where the processing of a regen/poison effect would skip any other similar effects. Hopefully that's been merged in.