Instead of a permanent solution consider a Spell Scroll.

Magic Weapon or Elemental Weapon would do quite nicely.

Both provide a +1 to attack rolls and damage (at their lowest slot) and are considered magical, in addition Elemental Weapon provides an additional d4 (again at its lowest slot) of choice of elemental damage upon casting.

Also, with the new Xanathar's optional rules this is likely the most accessible for low level characters. It can also be given by a hedge wizard or town leadership in hopes of helping the adventurers defeat the threat. Then they can say "We helped!"

It is tempting to give your players extra edges in combat but as you are all first time, use it as a learning experience first before making changes that could take away the fun. If encounters are too easy they are not much fun in my experience.

Instead of a permanent solution consider a Spell Scroll.

Magic Weapon or Elemental Weapon would do quite nicely.

Both provide a +1 to attack rolls and damage (at their lowest slot) and are considered magical, in addition Elemental Weapon provides an additional d4 (again at its lowest slot) of choice of elemental damage upon casting. Both also provide an opportunity cost as they require concentration.

Also, with the new Xanathar's optional rules this is likely the most accessible for low level characters. It can also be given by a hedge wizard or town leadership in hopes of helping the adventurers defeat the threat. Then they can say "We helped!"

It is tempting to give your players extra edges in combat but as you are all first time, use it as a learning experience first before making changes that could take away the fun. If encounters are too easy they are not much fun in my experience.

Instead of a permanent solution consider a Spell Scroll.

Magic Weapon or Elemental Weapon would do quite nicely.

Both provide a +1 to attack rolls and damage (at their lowest slot) and are considered magical, in addition Elemental Weapon provides an additional d4 (again at its lowest slot) of choice of elemental damage upon casting.

It is tempting to give your players extra edges in combat but as you are all first time, use it as a learning experience first before making changes that could take away the fun. If encounters are too easy they are not much fun in my experience.

Instead of a permanent solution consider a Spell Scroll.

Magic Weapon or Elemental Weapon would do quite nicely.

Both provide a +1 to attack rolls and damage (at their lowest slot) and are considered magical, in addition Elemental Weapon provides an additional d4 (again at its lowest slot) of choice of elemental damage upon casting.

Also, with the new Xanathar's optional rules this is likely the most accessible for low level characters. It can also be given by a hedge wizard or town leadership in hopes of helping the adventurers defeat the threat. Then they can say "We helped!"

It is tempting to give your players extra edges in combat but as you are all first time, use it as a learning experience first before making changes that could take away the fun. If encounters are too easy they are not much fun in my experience.