Diirk said:
Don't be fooled; what ARandomGod describes as his method for 'overlapping' is just another word for stacking.
Er, no, it isn't, because:
Rkhet said:
Also: with your version, if I have two Aids giving 10pts each, and I take 30 damage from an attack, what happens? Do I take 10 because the temporary points both cut in at the same time? Or do I take 20 and one Aid remains?
You are hit for 30 damage. You have 10 temporary hit points. Those 10 temporary hit points are gone, and you take 20 points of damage. Now, the second Aid spell is the strongest source of temporary hit points. It takes over, and you now have 10 temporary hit points on top of your normal (-20 from the last hit) damage.
If they actually stacked - in the sense of "All available at once" - then in the above case you'd only suffer 10 points of damage, as you'd have 20 temporary hit points.
Consider the following: There is a notional spell - Rush of Strength - which gives you a +6 enhancement bonus to Strength. This bonus attenuates over 6 rounds, giving +6 in the first round, +5 in the second, etc., until it reaches 0, at which point the spell expires.
The target of the spell is under the effects of a Bull's Strength spell, and has this spell cast at him. Since they both provide enhancement bonuses, the spells do not stack with each other. So, what enhancement bonus to Strength does he have in each round?
Round 1: +6 (RoS overlaps BS)
Round 2: +5 (RoS overlaps BS)
Round 3: +4 (RoS overlaps BS or vice versa)
Round 4: +4 (BS overlaps RoS)
Round 5: +4 (BS overlaps RoS)
Round 6: +4 (BS, RoS expires)
How is this any different from two spells, one of which provides 10 temporary hit points (Enhanced Defense) and one which provides 5 temporary hit points (Defense), in a situation in which the PC is taking one damage per round?
Round 1: 9 THP (EH overlaps D)
Round 2: 8 THP (EH overlaps D)
Round 3: 7 THP (EH overlaps D)
Round 4: 6 THP (EH overlaps D)
Round 5: 5 THP (EH overlaps D)
Round 6: 5 THP (D overlaps EH)
Round 7: 4 THP (EH overlaps D)
Round 8: 4 THP (D overlaps EH)
Round 9: 3 THP (EH overlaps D)
Round 10: 3 THP (D overlaps EH)
Round 11: 2 THP (EH overlaps D)
Round 12: 2 THP (D overlaps EH)
Round 13: 1 THP (EH overlaps D)
Round 14: 1 THP (D overlaps EH)
Round 15: 0 THP (D overlaps EH)