What is arcane weapon 5e?

In Dungeons & Dragons 5th Edition, an Arcane Weapon is a spell that allows a spellcaster to imbue a non-magical weapon with magical energy, temporarily enhancing its damage and enabling it to deal additional types of damage such as fire, cold, or lightning.

Arcane Weapon is a 1st-level spell for artificers, bards, sorcerers, and wizards. The spell has a casting time of 1 bonus action and a duration of 1 hour, during which time the imbued weapon retains its enhanced properties. The spell can be cast on any melee weapon or a single piece of ammunition for a ranged weapon.

The damage bonus granted by the spell increases as the spellcaster gains levels, from an additional 1d6 damage at 1st level to 4d6 damage at 17th level. The spellcaster may also choose the type of damage their weapon deals, including acid, cold, fire, lightning, poison, or thunder.

Overall, Arcane Weapon is a powerful tool for spellcasters who want to enhance their own combat abilities or those of their allies, allowing them to make deadly strikes against their foes.