Magic Weapon

D&D 2014 spell: Magic Weapon. Source: Player's Handbook (2014). level 2, school Transmutation, casting time 1 bonus, range Touch, duration Concentration, up...

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

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.

Source: Player's Handbook (2014), p. 257 - Licenses and attribution