In the cited question, the consensus is that Uncanny Dodge halves all damage from an attack including damage inflicted by elemental types such as radiant.
Uncanny Dodge. When an attacker that you can see hits you with an attack, you can use your reaction to halve the attack’s damage against you.
Does this also apply to Poison damage? The distinction being that the Poison damage type is applied in varying manners by the game. For example:
- A victim of an attack coated with a basic poison from the PHB is given the chance to save against the poison's damage. If the save is successful, the poison adds no damage.
- The bite of a basilisk, delivers poison damage in addition to the bite and doesn't offer a chance to save.
- Lastly, a wyvern's stinger, which deals base damage and poison damage offering a chance to halve the poison's damage with a save.
Does Uncanny Dodge halve the damage in all of the above cited cases? Does it only halve in cases where a save isn't offered? Or something in between?