How an object get reflex save?

[With a box]

Reflex

These saves test your ability to dodge area attacks. Apply your Dexterity modifier to your Reflex saving throws.

like, if you throw a +1 armor at rust monster, it get a reflex save to not dissolved. but how they can dodge? it's just an sheet of metal...

[snailgosh]

Reflex

These saves test your ability to dodge area attacks. Apply your Dexterity modifier to your Reflex saving throws.

like, if you throw a +1 armor at rust monster, it get a reflex save to not dissolved. but how they can dodge? it's just an sheet of metal...

One could argue, that an thrown armor counts as unattended and thus receives no saving throw

OTOH the question is similar to how an unconcious character receives an Reflex save (albeit as if done with a DEX of 0)
I'd contribute it to sheer luck

[Urpriest]

One could argue, that an thrown armor counts as unattended and thus receives no saving throw

OTOH the question is similar to how an unconcious character receives an Reflex save (albeit as if done with a DEX of 0)
I'd contribute it to sheer luck

It does count as unattended, but since it's magic it still gets a saving throw.

Which should answer your question, really. Magic armor may be tougher than normal armor, but its main function is to make you harder to hit. Similarly, magic weapons make it easier for you to hit others. It seems reasonable to suggest that most magic items have a sort of luck to them, powered by their magical properties, that protects them from damage, the same luck that lets them hit more accurately as weapons and deflect more hits as armor.

[Chronos]

A creature can save against a Fireball by trying to get out of the hottest parts of the explosion. An object can save against a Fireball by just happening to already be in one of the less-hot parts. It probably won't happen, but that's reflected by the fact that most objects have terrible saves.

[Deophaun]

Just as with any attack, there are actually two components at play here:
- how well the target defends itself
- how well the attacker... er... attacks

Both are represented in the single d20 roll.

An object, of course, cannot defend itself at all. But, just because the bump on a log acts like a bump on a log does not mean you can't still place the fireball in such a way that it only deal half (well, quarter) damage.

[elonin]

If it's animated?

More seriously, there is a slight chance that a scroll might survive a fire even if only a small one. The save reflects that possibility.

[Crake]

If it's animated?

More seriously, there is a slight chance that a scroll might survive a fire even if only a small one. The save reflects that possibility.

Most saves are save for half. I don't think the scroll has evasion, so even on a successful save, the scroll will take half damage, and will likely still burn up anyway.

[Grek]

It's enchanted armour. Part of that +1 enchantment is making the item harder to destroy, including by rust monsters. After all, if you were a wizard making magic armour, wouldn't you try to make it a little rust monster proof if you could?