Can rust monsters eat adamantine?

Rust monsters roam subterranean passages in search of ferrous metals such as iron, steel, adamantine, and mithral to consume.

Can rust monsters destroy magic items?

After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls.” I would say based on that wording that Rust Monsters don’t have any effect on Magic Items. Rust Monsters explicitly point out that their ability only affects non-magical weapons made of metal.

Can rust monsters eat gold?

Yes, RAW a Rust Monster cannot rust/ruin gold.

Are magic items unbreakable?

Thanks to a combination of careful crafting and magical reinforcement, a magic item is at least as durable as a nonmagical item of its kind. Most magic items, other than potions and scrolls, have resistance to all damage. Artifacts are practically indestructible, requiring extraordinary measures to destroy.

What does an adamantine weapon do DND 5e?

Adamantine armor turns critical hits against the wearer into regular hits; any hit from an adamantine weapon against an object does extra damage because it’s a critical hit.

Do magic weapons overcome damage resistance?

There is no blanket rule saying that a magical weapon bypasses any resistances. It’s just that more often than not a creature’s stat block specifies “resistance to bludgeoning, piercing, and slashing damage from non-magical weapons”. This means that magical weapons are not affected by this resistance.

Do +1 weapons deal magic damage?

There is no such thing as “magical damage”. The list of damage types includes “radiant”, “necrotic”, “bludgeoning”,”fire”, and so on. The +1 Mace does Bludgeoning damage, but it is a magic item and therefore does so as a magical attack. Hence it bypasses the resistance to “bludgeoning damage from non-magical attacks”.

Do infused weapons count as magic?

To use this ability, you must have tinker’s tools or other artisan’s tools in hand. Infusing an Item Whenever you finish a long rest, you can touch a nonmagical object and imbue it with one of your artificer infusions, turning it into a magic item.