elemental spear

once per long rest the caster of this cantrip may choose any of these elements. Acid, necrotic, fire, poison, lighting ice, radiant

the spell does 1d6 piercing as well as 1d8 of the chosen element 

the caster creates a spear of their chosen element in front of them and then shoots it at their target   

the creature if hit must succeed at a dc 12 dex saving throw or take 1d4 element damage at the beginning of their turn if they succeed the effect ends 

at level 5 the spell gets a second of both dice as well as at level 10, 15, 20