Couple of questions, please help

[Leander.quest]

A couple of questions:

1) Is acid damage poison? I have a ring that deals 2 acid damage...and a belt that gives an enemy a poison damage when hit by poison damage. I think the combination works, but why doesn't it read "acid damage"?

2) I've given Astarion two crossbows...so he has two attacks....but I cannot find his dread ambusher skill anymore...or is it only possible with one weapon and not two ranged ones as it would be OP?

3) Is a spell non-weapon damage?

[Mike Garrison]

Poison is poison and acid is acid.

[Matunus]

Spell attacks are spell attacks, they are not weapon attacks, but they are not unarmed attacks either. Other than in 3/3.5/Pathfinder you CANNOT sneak attack with spells in D&D 5.

[Leander.quest]

Thanks. So my combination does not make sense?

Caustic band: your weapon attacks also deal 2 acid damage
Poisoner's gloves: whenever you deal poison damage, the target needs to succeed a ... throw or become poisoned

But if you do not deal poison damage with the gloves themselves or the band, I mean...I don't understand the bonus. If you deal poison damage with another item, you deal poison -> over time damage anyway...

[Matunus]

No, there is no synergy between those two items, because they refer to a different damage type.

For the gloves, it doesn't matter whether you deal damage with a spell, weapon or unarmed attack, but poison is generally one of the worse damage types in D&D, as there are many monster resistant or immune to it.

[Mike Garrison]

Main way to poison something is to apply poison to a weapon. There are also some spells (like cloudkill) that do poison damage.

Those gloves are part of a set of items you can use to become a poison-focus build. (Whether you should want to do that or not is a different question than whether you can do that or not.)

[jonnin]

there is a broken item that when hit with acid damage, the target has a chance to gain acid cloud that hits the target and those adjacent. Its not supposed to hurt YOU, but it does, making it less than useful since the AI knows to run up and hit your guys with the clouds.

Poison is very, very easy for enemy to resist. Focus on it is difficult, typically a caster that can make saving throws for the enemy fail reliably. Acid is much more reliable. That +2 ring is just devastating in the hands of someone who gets a LOT of attacks per round... got monk?

[Leander.quest]

Thanks