For example, say someone hit a dwarf with a poisoned arrow. Dwarves have both an advantage on the saving throw to poison damage and are also resistant to poison damage. So if they succeed on the saving throw, the damage is halved, twice effectively making it 1/4 the damage. My question is, what if that dwarf also had a ring of poison resistance? Does the damage get halved, again in the example mentioned or is that ring basically ignored?
As above, nothing stacks. There are 3 "layers" and each applies, but none of them stack.
1. The saving throw. If something gives you advantage on the roll (race, class, etc), then you have adv. If something gives you disadvantage, then you have disad. If you get both, no matter how many you get of either, they cancel out and you have neither.
2. You succeed or fail on the save. If the save cuts the damage in half, then the damage is cut in half. If you have evasion and it applies, then the damage is half or none.
3. Resistances apply, once. If you're a dwarf, with a poison resist periapt, standing in an Ancients paladin aura and someone casts a poison spell on you, you do not get 3 resists, you just get one. The damage from 2 above is cut in half if any resist applies, no matter how many.
So, in action, a dwarven rogue with evasion and a periapt of proof vs poison is hit by a breath weapon from a green dragon.
He has advantage on the saving throw. If he saves, he takes 0 damage.
If he fails the save, then he takes half damage due to evasion, halved again due to any resistance so he takes quarter damage.
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Ancient GM, started in '76, have played almost everything at some point or another.
I run/play Mercer-style games, heavy on the RP and interaction, light on the combat-monster and rule-lawyering. The goal is to tell an epic story with the players and the players are as involved in the world building as the GM is. I run and play a very Brechtian style, am huge into RP theory and love discussing improv and offers.
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For example, say someone hit a dwarf with a poisoned arrow. Dwarves have both an advantage on the saving throw to poison damage and are also resistant to poison damage. So if they succeed on the saving throw, the damage is halved, twice effectively making it 1/4 the damage. My question is, what if that dwarf also had a ring of poison resistance? Does the damage get halved, again in the example mentioned or is that ring basically ignored?
Damage resistances do not stack.
https://www.dndbeyond.com/compendium/rules/phb/combat#DamageResistanceandVulnerability
Ah ok, thanks for the heads up!
As above, nothing stacks. There are 3 "layers" and each applies, but none of them stack.
1. The saving throw. If something gives you advantage on the roll (race, class, etc), then you have adv. If something gives you disadvantage, then you have disad. If you get both, no matter how many you get of either, they cancel out and you have neither.
2. You succeed or fail on the save. If the save cuts the damage in half, then the damage is cut in half. If you have evasion and it applies, then the damage is half or none.
3. Resistances apply, once. If you're a dwarf, with a poison resist periapt, standing in an Ancients paladin aura and someone casts a poison spell on you, you do not get 3 resists, you just get one. The damage from 2 above is cut in half if any resist applies, no matter how many.
So, in action, a dwarven rogue with evasion and a periapt of proof vs poison is hit by a breath weapon from a green dragon.
He has advantage on the saving throw. If he saves, he takes 0 damage.
If he fails the save, then he takes half damage due to evasion, halved again due to any resistance so he takes quarter damage.
Ancient GM, started in '76, have played almost everything at some point or another.
I run/play Mercer-style games, heavy on the RP and interaction, light on the combat-monster and rule-lawyering. The goal is to tell an epic story with the players and the players are as involved in the world building as the GM is. I run and play a very Brechtian style, am huge into RP theory and love discussing improv and offers.