Enspell

This Spell is a Rare Spell these type of spell you need to find or unlock from a spell scroll or some other Source(optional rule)

Choose one damage type from acid, cold, fire, lightning, and thunder. Upon casting this spell, any or all creatures you choose within 15 feet of you have their weapons infused with magical energy corresponding to that damage type. For the duration, the affected creatures' weapons are magical, and on a hit deal an extra 1d6 damage of the type you chose. Any affected weapon loses this property if loses contact with the affected creature.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d6 for every two slot levels above 4th.