Magic Weapon

2nd-level transmutation
Casting time: 1 bonus action
Range: Touch
Target: a nonmagical weapon
Components: V S
Duration: Concentration, up to 1 hour
Classes: Artificer, Paladin, Ranger, Sorcerer, Wizard
Subclasses: Cleric (Arcana Domain), Cleric (Forge Domain), Cleric (War Domain), Cleric (Zeal Domain), Fighter (Eldritch Knight), Paladin (Oath of Glory), Rogue (Arcane Trickster), Sorcerer (Clockwork Soul), Sorcerer (Stone Sorcery), Circle of Spirit

You touch a nonmagical weapon. Until the spell ends, that weapon becomes a magic weapon with a +1 bonus to attack rolls and damage rolls.

At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, the bonus increases to +2. When you use a spell slot of 6th level or higher, the bonus increases to +3.