Chromatic Slash

As part of the action used to cast this spell, you must make a melee attack, with a weapon that has a 50g worth diamond embedded into it, against one creature within the spell's range, otherwise the spell fails. On a hit, the target suffers the attack's normal effects as well as struck with one damage type among the following; Acid, Cold, Fire, Lightning, Poison or Thunder. The creature struck takes 3d8 extra damage from the melee attack of the type chosen.

At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for each slot above 1st.